Thursday, December 9, 2010
How does studying chemistry give us a better view of how industry affects the world?
Chemistry gives us a better view on how industry affects us by giving us the cautions, side effects and outcomes. When something bad goes on, chemistry effects us by giving the bigger picture of industry. It will show that something wrong is happening in industry which gives us a view that it is most likely bad and has a negative effect on our environment. It also shows the side effects which could damage or do well in our environment. We can then chose whether or not we should keep our industry going along or end it so we can prevent further damage. The outcomes are the most important because it bases if the industry is really needed or not. If we stopped with some industry out environment and planet would be some what saved, but we can act now too.
Tuesday, December 7, 2010
KWL NEW
KWL
Chemistry: the study of matter and dealing with the composition of substances and their properties and reactions.
What I know:
1. You add the electrons to find the element
2. There can only be 2,8 and 16 in the first, second and third layers
3. Protons are positive neutrons are zero and electrons are negative
4. Protons and electrons ALWAYS need to be even
What I want to know:
1. Why do atoms undergo physical changes?
2. Who invented the periodic table?
3. How do atoms multiply?
4. Can you see atoms with a microscope?What I Learned:
1. Atoms cannot be seen by microscopes
2. Atomic number is how many electrons and protons3. Atomic mass-protons= number of neutrons
4. Valence electrons show how many can be shared
5. Undergo physical changes because they bond
6. Many people who discovered the elements
7. Bond by sharing or taking
8. MUCH MORE :)
Thursday, December 2, 2010
Tuesday, November 30, 2010
Friday, November 26, 2010
Wednesday, November 24, 2010
Current Events 23.11.2010
For Your Teeth, Thanksgiving Is a Real Food Fight
- Science Daily
Summary:
Thanksgiving is the time of feasting. It is not only a food fight for people, but for teeth. It's not the food itself, it's the S.mutants. They are found in sugar and they stick to your teeth causing decay. There are good news at the thanksgiving table and bad. The good are Koo(bacteria) comes together with S. mutants causing plaque, but scientists have found out how to prevent it by isolating elements in a cranberry sauce. Thanks to thanksgiving we can give thanks to preventing plaque! The bad are people will have cranberry sauce much more causing them to take in too much sugar which can be bad for one and give you cavities. The solution is, BRUSH YOUR TEETH.
One World:
This article connects to what we are learning by being current news about the world around us. In particular this article is about the decaying of teeth and how we can stop it. This news effects scientific knowledge by teaching them that plaque can be stopped using cranberry sauce, but it also shows how it can be harmful. This article also effects society by giving people an idea of what to do when they celebrate thanksgiving and still be healthy. It does not really effect technology because there are many machines used to remove and help tooth decay.
Analysis/Evaluation:
This article made sense because it was portrayed through a very common celebration called thanksgiving. The evidence is also provided by dentists. Whilst ready I made only two inquiries. Firstly, how does cranberry sauce elements help prevent plaque? Secondly, how can we stop plaque other than eating cranberry sauce?
Reflection:
This article was very interesting because of three reasons. Firstly, elements from cranberry sauce can prevent plaque! I never thought a fruit could to such an amazing thing. Secondly, food can prevent tooth decay and plaque. I thought food only contributed to it, but I am luckily wrong. Thirdly, thanksgiving can bring a fight to your teeth. Food helps us attain energy, but if we don't brush our teeth, food can be potentially dangerous. In conclusion I enjoyed this article and it was very interesting. I now know how to prevent tooth decay and plaque, by just eating cranberry sauce!
Tuesday, November 16, 2010
Current Events 16.11.2010
Rare Mutations Key to Brain
- Tina Hesman Saey
Site: http://www.sciencenews.org/view/generic/id/65454/title/Rare_mutations_key_to_brain_disorders
Summary:
Many mutations of the brain are not inherited , new research shows that a rare kind of DNA variants pop up for the first time in effected people. A study in Nature Genetics shows that disrupting even one copy of certain genes can effect the way your brain develops and mental abilities. An experiment in the Netherlands shows that people that suffer from retardation lost chunks of DNA and or got the DNA duplicated when they were being formed. This article is pretty much how DNA effects your mental and brain development. If you lack or lost a DNA chunk you will suffer from retardation. In some cases you inherit it. It all comes down to your DNA...
One World:
This article connects to what we are learning about by being current news about the world around us. This news effects scientific knowledge by teaching scientists that mutations of the brain are not only inherited but caused by loss or lack of DNA. This news also effects technology by engaging scientists to make a machine which can give DNA so that there will be less brain mutations. In addition to that this news effects society by giving clear information that brain mutations are not just inherited so people can relax if their family members have brain mutations and the future can be bright for them!
Analysis/Evaluation:
This article makes sense because a lot of thought and evidence is provided. While reading I had three inquiries. Firstly, how can we prevent brain mutations? Secondly, how do you lose and lack DNA? Thirdly, how much DNA do you need to loose or lack in order to have a brain mutation?
Reflection:
This article was VERY helpful and interesting in understanding DNA and brain mutations. I learned three crucial things. Firstly, you have a chance of not inheriting a brain mutation. It has been proven that most cases are not inherited! Secondly, a brain mutation is caused by losing or lacking some DNA. It is lost when a baby is being formed. I hope scientists find a way to prevent because it would be a major break-through! Thirdly, DNA is everything to make you normal. If you want to be a normal human being you have to have normal DNA. We who are normal people are lucky not to have such a problem. In conclusion, I enjoyed reading this article because I learned a lot. I hope I can educate some about how lucky we are because it is truly amazing.
- Tina Hesman Saey
Site: http://www.sciencenews.org/view/generic/id/65454/title/Rare_mutations_key_to_brain_disorders
Summary:
Many mutations of the brain are not inherited , new research shows that a rare kind of DNA variants pop up for the first time in effected people. A study in Nature Genetics shows that disrupting even one copy of certain genes can effect the way your brain develops and mental abilities. An experiment in the Netherlands shows that people that suffer from retardation lost chunks of DNA and or got the DNA duplicated when they were being formed. This article is pretty much how DNA effects your mental and brain development. If you lack or lost a DNA chunk you will suffer from retardation. In some cases you inherit it. It all comes down to your DNA...
One World:
This article connects to what we are learning about by being current news about the world around us. This news effects scientific knowledge by teaching scientists that mutations of the brain are not only inherited but caused by loss or lack of DNA. This news also effects technology by engaging scientists to make a machine which can give DNA so that there will be less brain mutations. In addition to that this news effects society by giving clear information that brain mutations are not just inherited so people can relax if their family members have brain mutations and the future can be bright for them!
Analysis/Evaluation:
This article makes sense because a lot of thought and evidence is provided. While reading I had three inquiries. Firstly, how can we prevent brain mutations? Secondly, how do you lose and lack DNA? Thirdly, how much DNA do you need to loose or lack in order to have a brain mutation?
Reflection:
This article was VERY helpful and interesting in understanding DNA and brain mutations. I learned three crucial things. Firstly, you have a chance of not inheriting a brain mutation. It has been proven that most cases are not inherited! Secondly, a brain mutation is caused by losing or lacking some DNA. It is lost when a baby is being formed. I hope scientists find a way to prevent because it would be a major break-through! Thirdly, DNA is everything to make you normal. If you want to be a normal human being you have to have normal DNA. We who are normal people are lucky not to have such a problem. In conclusion, I enjoyed reading this article because I learned a lot. I hope I can educate some about how lucky we are because it is truly amazing.
Friday, November 12, 2010
The Chemistry of Fireworks
Questions:
1.How are fireworks capsules designed?
2What safety procedures do they include in the design?
3.What are the various compounds mentioned in this video? *What are their chemical formulas?
4.Which element is extremely important for fireworks to work properly? What is the fire triangle?
5.What two components do fireworks need in order to produce heat at a certain burning rate?
6.What type of reaction takes place in fireworks?
Answers:
1. They are designed by making a rain drop shaped shape out of cardboard. On the bottom there is a casing which is filled with black powder propellant. A fuse goes inside which triggers the explosion. On the top of the casing there is a section which also contains black powder but it has the bursting charge. Around that there is pea size chemical pellets which will produce different visual effects.
2. The design includes a trigger which is then lit and the firework is sent up in the sky from a distance. Also the design has many layers so that the content inside can be safe.
3. The compounds are potassium nitrate -KNO3-, potassium perchlorate -KClO4-, strontium chloride -SrCl2-, potassium perchlorate -KClO4-, strontium nitrate -SrNO3- and a few others.
4.+5. Oxygen because it makes the burning occur. Oxidizers and fuels are needed to make a firework which need to heat up. The oxidizers are strontium nitrate, potassium nitrate and potassium perchlorate. The fuels are aluminum powder, magnesium powder, sulfur and charcoal. To get a specific burning rate and heat temperature you need to change the fuels like an equation until it is balanced or the way you want it to be.
6. A chemical reaction takes place in a firework because if you want to make colour you need to have a burning mixture( which is provided by the oxidizer and fuel) and then you can add the different compounds to make the colour you desire.
1.How are fireworks capsules designed?
2What safety procedures do they include in the design?
3.What are the various compounds mentioned in this video? *What are their chemical formulas?
4.Which element is extremely important for fireworks to work properly? What is the fire triangle?
5.What two components do fireworks need in order to produce heat at a certain burning rate?
6.What type of reaction takes place in fireworks?
Answers:
1. They are designed by making a rain drop shaped shape out of cardboard. On the bottom there is a casing which is filled with black powder propellant. A fuse goes inside which triggers the explosion. On the top of the casing there is a section which also contains black powder but it has the bursting charge. Around that there is pea size chemical pellets which will produce different visual effects.
2. The design includes a trigger which is then lit and the firework is sent up in the sky from a distance. Also the design has many layers so that the content inside can be safe.
3. The compounds are potassium nitrate -KNO3-, potassium perchlorate -KClO4-, strontium chloride -SrCl2-, potassium perchlorate -KClO4-, strontium nitrate -SrNO3- and a few others.
4.+5. Oxygen because it makes the burning occur. Oxidizers and fuels are needed to make a firework which need to heat up. The oxidizers are strontium nitrate, potassium nitrate and potassium perchlorate. The fuels are aluminum powder, magnesium powder, sulfur and charcoal. To get a specific burning rate and heat temperature you need to change the fuels like an equation until it is balanced or the way you want it to be.
6. A chemical reaction takes place in a firework because if you want to make colour you need to have a burning mixture( which is provided by the oxidizer and fuel) and then you can add the different compounds to make the colour you desire.
Wednesday, November 10, 2010
Current Events 10.11.2010
Exposure of moms-to-be to hormone-mimicking chemical may affect kids years later
-Janet Raloff
Site: http://www.sciencenews.org/view/generic/id/59372/title/Exposure_of_moms-to-be_to_hormone-mimicking_chemical_may_affect_kids_years_later
Summary:
A new rodent study shows that bisphenol A (BPA), a mimicking chemical that comes from many plastics and food-can liners, can provoke changes during a pregnancy. Only the mother and male offspring are effected. The effect is that both can be a possible risk factor for gestational diabetes, type 2 diabetes and even cardiovascular disease associated with metabolic syndrome. Metabolic syndrome, which may effect up to one-third of adults, consists of a constellation of prediabetic symptoms that can include elevated blood pressure, higher levels of harmful LDL cholesterol and increases in the length of time fats circulate in the blood. In mice this effected the pregnancy by making it later than scheduled and after the pregnancy the mice become 6 percent heavier than unexposed mice. This shows the metabolism was effected because they had higher levels of fat. Scientists can't figure out whether the BPA effects the offspring or the metabolic change. The main point is that they figured out what BPA does to the human body and if diabetes will effected the offspring.
One World:
This article connects to what we are studying about by information about chemical properties. This news effects scientific knowledge by teaching us how BPA effects a pregnancy and how that pregnancy is disturbed. If people can find a way to prevent it then off-springs and mothers can be saved! This news effects technology by giving an idea of how to make a machine or medicine to prevent BPA from taking over. It also continues to be the topic of how to stop diabetes. In addition to that, this news effects society by giving more awareness about pregnancies and how mothers should be careful of consuming BPA.
Analysis/ Evaluation:
This scientific was news about how BPA effects pregnancies. This article made sense because a lot of examples were given to support facts. Whilst reading I had only two questions: 1. What canned food should mothers not eat? 2. How can we stop BPA?
Reflection:
This scientific news taught me three major things for my future. Firstly, when I become pregnant I should not eat canned foods because my baby might get BPA. Secondly, you gain 6% when you are pregnant then when you are not. Thirdly, BPA can cause diabetes which can transfer to you and your baby. In conclusion this information was very useful for the future and I will remember it throughout life.
-Janet Raloff
Site: http://www.sciencenews.org/view/generic/id/59372/title/Exposure_of_moms-to-be_to_hormone-mimicking_chemical_may_affect_kids_years_later
Summary:
A new rodent study shows that bisphenol A (BPA), a mimicking chemical that comes from many plastics and food-can liners, can provoke changes during a pregnancy. Only the mother and male offspring are effected. The effect is that both can be a possible risk factor for gestational diabetes, type 2 diabetes and even cardiovascular disease associated with metabolic syndrome. Metabolic syndrome, which may effect up to one-third of adults, consists of a constellation of prediabetic symptoms that can include elevated blood pressure, higher levels of harmful LDL cholesterol and increases in the length of time fats circulate in the blood. In mice this effected the pregnancy by making it later than scheduled and after the pregnancy the mice become 6 percent heavier than unexposed mice. This shows the metabolism was effected because they had higher levels of fat. Scientists can't figure out whether the BPA effects the offspring or the metabolic change. The main point is that they figured out what BPA does to the human body and if diabetes will effected the offspring.
One World:
This article connects to what we are studying about by information about chemical properties. This news effects scientific knowledge by teaching us how BPA effects a pregnancy and how that pregnancy is disturbed. If people can find a way to prevent it then off-springs and mothers can be saved! This news effects technology by giving an idea of how to make a machine or medicine to prevent BPA from taking over. It also continues to be the topic of how to stop diabetes. In addition to that, this news effects society by giving more awareness about pregnancies and how mothers should be careful of consuming BPA.
Analysis/ Evaluation:
This scientific was news about how BPA effects pregnancies. This article made sense because a lot of examples were given to support facts. Whilst reading I had only two questions: 1. What canned food should mothers not eat? 2. How can we stop BPA?
Reflection:
This scientific news taught me three major things for my future. Firstly, when I become pregnant I should not eat canned foods because my baby might get BPA. Secondly, you gain 6% when you are pregnant then when you are not. Thirdly, BPA can cause diabetes which can transfer to you and your baby. In conclusion this information was very useful for the future and I will remember it throughout life.
Wednesday, November 3, 2010
Current Events 3.11.2010
Artificially Controlling Cell Division
- Kathleen Too
Site: http://www.rsc.org/Publishing/Journals/cb/Volume/2010/12/artificially_controlling.asp
Summary:
U.S scientists have found out how to replicate the part of a cell named the mitotic spindle to better understand it's role in cell division. If the spindle doesn't work properly, the person carrying the cell could have Down's syndrome or possibly cancer. William Hancock and a few other scientists in Pennsylvania State University have recreated a step in mitosis using the artificial mitotic spindle. Mitosis is when two cells separate making two equal cells with a nucleus. The mitotic spindle controls the amount of chromosomes in the cell making it the "support and technical" group in the division of cells.
One World:
The article Artificially Controlling Cell Division, connects to what we are learning about by being news information about chemical biology. We are studying about chemical properties and how different chemical topics effect modern day. This news effects scientific knowledge by giving us a new look on how to prevent Down's syndrome and cancer. Many scientists get paid millions of dollars in order to find the cure to both these diseases. If this actually works then this could be a huge breakthrough! This news also effects technology by pushing the mechanics to the test to make special equipment in order to prevent serious diseases which could lead them to the jack pot. In addition to that, this new effects society by giving people the opportunity and hope of recovering from these diseases and a new look on prevention. It will also make some parts of society, like doctors, richer because they can make the price high to save people. The benefits are preventing these horrid diseases but the limitations are only some people can be cured and the method might not work.
Analysis/Evaluation:
The scientific information was a new method was being created to prevent Down's syndrome and cancer by making a replica of a mitotic spindle. This article made sense because pictures and quotes were included to back up the information. Whilst reading I had two inquiries. Firstly, how does the mitotic spindle be placed into the sick? Secondly, when will these machines and cures be issued?
Reflection:
From this article I learned three important things. Firstly, people can tap into the the division of cells. I thought that our scientists weren't that advanced at going into the detail of cell division. Secondly, that replicas of cell structures could be made. I thought mother nature couldn't be replaced but I guess I was wrong. Thirdly, the picture above shows how cell division can be taken a picture of. I didn't know cameras could take pictures of our cells. In conclusion, the reasons above are what I learned and to sum it all up, I didn't know scientists were so advanced in the cell world.
- Kathleen Too
Site: http://www.rsc.org/Publishing/Journals/cb/Volume/2010/12/artificially_controlling.asp
Summary:
U.S scientists have found out how to replicate the part of a cell named the mitotic spindle to better understand it's role in cell division. If the spindle doesn't work properly, the person carrying the cell could have Down's syndrome or possibly cancer. William Hancock and a few other scientists in Pennsylvania State University have recreated a step in mitosis using the artificial mitotic spindle. Mitosis is when two cells separate making two equal cells with a nucleus. The mitotic spindle controls the amount of chromosomes in the cell making it the "support and technical" group in the division of cells.
One World:
The article Artificially Controlling Cell Division, connects to what we are learning about by being news information about chemical biology. We are studying about chemical properties and how different chemical topics effect modern day. This news effects scientific knowledge by giving us a new look on how to prevent Down's syndrome and cancer. Many scientists get paid millions of dollars in order to find the cure to both these diseases. If this actually works then this could be a huge breakthrough! This news also effects technology by pushing the mechanics to the test to make special equipment in order to prevent serious diseases which could lead them to the jack pot. In addition to that, this new effects society by giving people the opportunity and hope of recovering from these diseases and a new look on prevention. It will also make some parts of society, like doctors, richer because they can make the price high to save people. The benefits are preventing these horrid diseases but the limitations are only some people can be cured and the method might not work.
Analysis/Evaluation:
The scientific information was a new method was being created to prevent Down's syndrome and cancer by making a replica of a mitotic spindle. This article made sense because pictures and quotes were included to back up the information. Whilst reading I had two inquiries. Firstly, how does the mitotic spindle be placed into the sick? Secondly, when will these machines and cures be issued?
Reflection:
From this article I learned three important things. Firstly, people can tap into the the division of cells. I thought that our scientists weren't that advanced at going into the detail of cell division. Secondly, that replicas of cell structures could be made. I thought mother nature couldn't be replaced but I guess I was wrong. Thirdly, the picture above shows how cell division can be taken a picture of. I didn't know cameras could take pictures of our cells. In conclusion, the reasons above are what I learned and to sum it all up, I didn't know scientists were so advanced in the cell world.
Thursday, October 7, 2010
Waste Water Spill
Who: People working at an aluminum plant didn't take safety precautions causing the reservoir to burst.
What: Human error caused a spill. The liquid is red with iron in it. It can cause skin burns and if the dust is inhaled it can cause lung cancer. It is also slightly radioactive. The government will try and clean it with water to neutralize the substance. Dams were built to prevent the spill reaching Romania. Predrag Maric quotes " the spill isn't dangerous but can still pollute our water supply".
When: 5th of October 2010
Where: In Western Hungary. It spread throughout Hungary.
Why: The spill occurred due to the reservoir bursting. Safety precautions weren't done so this is what happened when people are careless.
How: A chemical spill happened.The reservoir burst causing a flood and destroying everything in it's path. It reached the Danube and if it reaches Romania it will go to the Black Sea and from the Black Sea it will go to the Mediterranean Sea. From the Mediterranean Sea it will go the Indian Ocean. Hopefully there won't be that must water to flood the Indian Ocean.
Sites: http://www.latimes.com/news/nationworld/world/la-fgw-danube-sludge-20101008,0,4752052.story
http://www.terradaily.com/reports/Danube_water_quality_controls_boosted_after_Hungary_spill_999.html
http://www.npr.org/blogs/thetwo-way/2010/10/05/130351938/red-sludge-from-hungarian-aluminum-plant-spill-an-ecological-disaster?ft=3&f=1019,1025,1131
http://www.reuters.com/article/idUSTRE69415O20101005
What: Human error caused a spill. The liquid is red with iron in it. It can cause skin burns and if the dust is inhaled it can cause lung cancer. It is also slightly radioactive. The government will try and clean it with water to neutralize the substance. Dams were built to prevent the spill reaching Romania. Predrag Maric quotes " the spill isn't dangerous but can still pollute our water supply".
When: 5th of October 2010
Where: In Western Hungary. It spread throughout Hungary.
Why: The spill occurred due to the reservoir bursting. Safety precautions weren't done so this is what happened when people are careless.
How: A chemical spill happened.The reservoir burst causing a flood and destroying everything in it's path. It reached the Danube and if it reaches Romania it will go to the Black Sea and from the Black Sea it will go to the Mediterranean Sea. From the Mediterranean Sea it will go the Indian Ocean. Hopefully there won't be that must water to flood the Indian Ocean.
Sites: http://www.latimes.com/news/nationworld/world/la-fgw-danube-sludge-20101008,0,4752052.story
http://www.terradaily.com/reports/Danube_water_quality_controls_boosted_after_Hungary_spill_999.html
http://www.npr.org/blogs/thetwo-way/2010/10/05/130351938/red-sludge-from-hungarian-aluminum-plant-spill-an-ecological-disaster?ft=3&f=1019,1025,1131
http://www.reuters.com/article/idUSTRE69415O20101005
Tuesday, October 5, 2010
Current Events 5.10.2010
Obesity and the common cold
-Stephen Ornes
Site: http://www.sciencenews.org/view/generic/id/63992/title/FOR_KIDS_Obesity_and_the_common_cold
Summary:
Research shows that obese people ( people that have too much or extensive amounts of fat) are causing an epidemic. If a child is obese, they will most likely become obese adults. Obesity is caused by poor nutrition and lack of exercise. Another study has shown that if a child has/had adenovirus-36 they can become obese. A test was taken out of 57 children to see if they had antibodies to fight off this virus. Tests showed that only 19 had antibodies. This test proves that if children and adults maintain a healthy lifestyle they won't get this virus which would later lead them to not being obese.
One World:
The article Obesity and the common cold connects to what we are learning about by being current science news. It effects scientific knowledge by giving scientists a new look on antibodies and how the body mass effects the amount of anti bodies. It effects technology by making doctors make new machines to help people loose weight and antibodies. It also effects technology by making new drugs for the virus adenovirus-36. This article effects society by raising awareness about obesity and forcing people to maintain healthy lifestyles. The limitations are creating anti bodies for obese people. The benefits are people getting profit from drugs and people using their machines to get antibodies. Also there will be more healthier people.
Analysis/Evaluation:
The scientific information was searching to see if obese people have enough antibodies and if adenovirus-36 causes obesity. This article made sense because here were quotes and it was on a science site. I made one inquiry. Firstly, how can we stop adenovirus-36from making us obese?
Reflection:
From this article I learned three things. Firstly, that being obese as a child you can bring it with you into adulthood. I thought that you can stop it but not always. Secondly, that obesity is an epidemic. It sounds odd but many people get fat and this is quickly moving around the world. I thought only diseases can be epidemics. Thirdly, there is a virus that can make obesity. I thought only you can cause you obesity but since there is a virus people must stay extra safe and healthy to not catch it. In conclusion I found this article interesting and helpful. The ideas above are what I learned.
-Stephen Ornes
Site: http://www.sciencenews.org/view/generic/id/63992/title/FOR_KIDS_Obesity_and_the_common_cold
Summary:
Research shows that obese people ( people that have too much or extensive amounts of fat) are causing an epidemic. If a child is obese, they will most likely become obese adults. Obesity is caused by poor nutrition and lack of exercise. Another study has shown that if a child has/had adenovirus-36 they can become obese. A test was taken out of 57 children to see if they had antibodies to fight off this virus. Tests showed that only 19 had antibodies. This test proves that if children and adults maintain a healthy lifestyle they won't get this virus which would later lead them to not being obese.
One World:
The article Obesity and the common cold connects to what we are learning about by being current science news. It effects scientific knowledge by giving scientists a new look on antibodies and how the body mass effects the amount of anti bodies. It effects technology by making doctors make new machines to help people loose weight and antibodies. It also effects technology by making new drugs for the virus adenovirus-36. This article effects society by raising awareness about obesity and forcing people to maintain healthy lifestyles. The limitations are creating anti bodies for obese people. The benefits are people getting profit from drugs and people using their machines to get antibodies. Also there will be more healthier people.
Analysis/Evaluation:
The scientific information was searching to see if obese people have enough antibodies and if adenovirus-36 causes obesity. This article made sense because here were quotes and it was on a science site. I made one inquiry. Firstly, how can we stop adenovirus-36from making us obese?
Reflection:
From this article I learned three things. Firstly, that being obese as a child you can bring it with you into adulthood. I thought that you can stop it but not always. Secondly, that obesity is an epidemic. It sounds odd but many people get fat and this is quickly moving around the world. I thought only diseases can be epidemics. Thirdly, there is a virus that can make obesity. I thought only you can cause you obesity but since there is a virus people must stay extra safe and healthy to not catch it. In conclusion I found this article interesting and helpful. The ideas above are what I learned.
Monday, October 4, 2010
Atom Video
http://www.101science.com/Chemistry.htm#Chemicals_and_Interactions
This video was overall quite interesting and helpful in understanding the atom. I learned quite a few things:
- Electrons don't orbit the nucleus
-Atom(uncuttable)
-Reflective light is too big for an atom hence can't take pictures of them
-You can't know the location or momentum of an electron
-You can only know the probability of where it can be
-More likely to find it in the center but it can vary
-Function of where an electron is= orbital
-If protons, electrons and neutrons had velocity it would orbit
-# of protons= what element it is
-Atomic mass- protons=# of neutrons
-Isotope= same element with a different number of neutrons
-99.99% of something is free space
In conclusion I enjoyed learning from this video because the facts were repeated and stuck into your head.
This video was overall quite interesting and helpful in understanding the atom. I learned quite a few things:
- Electrons don't orbit the nucleus
-Atom(uncuttable)
-Reflective light is too big for an atom hence can't take pictures of them
-You can't know the location or momentum of an electron
-You can only know the probability of where it can be
-More likely to find it in the center but it can vary
-Function of where an electron is= orbital
-If protons, electrons and neutrons had velocity it would orbit
-# of protons= what element it is
-Atomic mass- protons=# of neutrons
-Isotope= same element with a different number of neutrons
-99.99% of something is free space
In conclusion I enjoyed learning from this video because the facts were repeated and stuck into your head.
Sunday, October 3, 2010
Green Plastics
From watching the video Green Plastics I have found out how normal and bio plastic effect the world. Plastics are being developed by making their production Eco-friendly. Bio plastic is made from natural resources which can be reused and recycled, the only problem is that it takes a lot of energy. Yes, bio plastic is recyclable unlike normal plastic but pesticides and gas is needed to maintain the production of bio plastic. Most people wouldn't recycle so it would be the same as normal plastic. What makes green plastics are natural resources being used and being recycled. Some issues with these plastics are as I mention before energy being used and harmful substances to keep the production of these plastics. In this video I saw three elements: oxygen, hydrogen and carbon. I saw about three compounds. It was these elements put together. The connection with this video,the article about water and Blue Gold is that showing the importance of keeping our environment clean because every possible way of pollution effects water, in this case pesticides and gases.
Wednesday, September 29, 2010
Current Events 29.9.2010
Diet Coke is 99% Water ( Now That's a Good Thing)
- Steven D. Levitt
Site:http://freakonomics.blogs.nytimes.com/2007/08/20/diet-coke-is-99-water-and-that-is-now-a-good-thing/
Summary:
Back in the day when diet coke was said to be 99% water it was an insult. Considering that at that point water was free, diet coke was just free water! You must have been silly to have paid for some water and a little bit of artificial this and that. Times have changed and water sales have been growing rapidly. Over $50 billion dollars in sales each year for purchasing bottled water! As CBS reports, water is now as big of a business as soda businesses. Comparing that age and now, water is much more expensive and is more wanted.
One World:
The article Diet Coke is 99% Water ( Now That's a Good Thing), connects to what we are learning about by teaching the importance of water. It effects scientific knowledge by teaching us what diet coke consists of. This effects technology by making more efficient bottles for drinks because many people prefer bottled water or drinks. This effects society by getting more jobs and wasting money for water which is over priced when it used to be free. The benefits are people gaining money, companies expanding and more jobs are available. The limitations are people wasting money and others making profit out of natural resources.
Analysis/Evaluation:
The scientific information was comparing water in the olden times and present day. This article made sense because it was written by a scientist and included facts from scientists. I made a couple of inquires. Firstly, why was there free water then and not now? Secondly, why don't we have free water now? Thirdly, why do people prefer bottled water?
Reflection:
From this article I learned three main things. Firstly,water in drinks was considered silly. Most people didn't buy it because they got free water. This makes me angry because why did people have free water then? Because people want profit now. Secondly, that diet coke was made up of 90% water. I thought it was mainly artificial ingredients but I was wrong. Thirdly, people are really greedy because they can't give free water. Though if water was free it could be wasted more but there would be no people dying of thirst. In conclusion after reading this article the reasons above are what I learned. I hope water will be saved and developing countries get free water.
- Steven D. Levitt
Site:http://freakonomics.blogs.nytimes.com/2007/08/20/diet-coke-is-99-water-and-that-is-now-a-good-thing/
Summary:
Back in the day when diet coke was said to be 99% water it was an insult. Considering that at that point water was free, diet coke was just free water! You must have been silly to have paid for some water and a little bit of artificial this and that. Times have changed and water sales have been growing rapidly. Over $50 billion dollars in sales each year for purchasing bottled water! As CBS reports, water is now as big of a business as soda businesses. Comparing that age and now, water is much more expensive and is more wanted.
One World:
The article Diet Coke is 99% Water ( Now That's a Good Thing), connects to what we are learning about by teaching the importance of water. It effects scientific knowledge by teaching us what diet coke consists of. This effects technology by making more efficient bottles for drinks because many people prefer bottled water or drinks. This effects society by getting more jobs and wasting money for water which is over priced when it used to be free. The benefits are people gaining money, companies expanding and more jobs are available. The limitations are people wasting money and others making profit out of natural resources.
Analysis/Evaluation:
The scientific information was comparing water in the olden times and present day. This article made sense because it was written by a scientist and included facts from scientists. I made a couple of inquires. Firstly, why was there free water then and not now? Secondly, why don't we have free water now? Thirdly, why do people prefer bottled water?
Reflection:
From this article I learned three main things. Firstly,water in drinks was considered silly. Most people didn't buy it because they got free water. This makes me angry because why did people have free water then? Because people want profit now. Secondly, that diet coke was made up of 90% water. I thought it was mainly artificial ingredients but I was wrong. Thirdly, people are really greedy because they can't give free water. Though if water was free it could be wasted more but there would be no people dying of thirst. In conclusion after reading this article the reasons above are what I learned. I hope water will be saved and developing countries get free water.
Monday, September 27, 2010
Phosphorus Glog
Click to view
This project taught me about how different elements can combine and why. I also learned that there are many types of phosphorus. Different colours mean different stages of danger to life. In addition to that I learned that phosphorus can only bond with certain elements such as iodine, fluorine, chlorine and bromine. It can't bond with any acids. Thanks to this project I have more knowledge about elements.
Click to view
This project taught me about how different elements can combine and why. I also learned that there are many types of phosphorus. Different colours mean different stages of danger to life. In addition to that I learned that phosphorus can only bond with certain elements such as iodine, fluorine, chlorine and bromine. It can't bond with any acids. Thanks to this project I have more knowledge about elements.
20 Things I didn't Know About Water!
Reflection:
1. Water is everywhere but only 1% of it is drinkable. I find this interesting and new because I thought there was a lot more water that can be used. Normally I don't care how long I shower but now I will take shorter ones because we are running out of drinkable water.
2.The Water Recovery System can turn 93% of an astronauts perspiration and urine into water. I found this interesting but not new because now there is an efficient way to turn human sweat and urine into water and re-use it. This isn't new to me because many survival movies show how you can re-use the water your body gives you. Those bring little and poisonous water but the Water Recovery System is not and brings extensive amounts.
3. You can make your own water by mixing hydrogen and oxygen in a container and adding a spark. This is new and interesting to me because I thought water was made naturally. In the worst case scenario humans will be forced to make their own water. Hopefully that won't happen but now I know how to.
4. Plant GJ 1214 which orbits a red dwarf star is made entirely of water. This is new to me and interesting because didn't people say Earth was the only planet with water? Apparently not because this planet does. If we do run out of water at least we have a back up planet to help us survive.
5. Life may have started in a comet because comets are said to have water in them. This is new and interesting to me because many people have theories about how life started. This one makes sense. Since comets travel a lot there is a possibility that life started in them. This could also mean there is more life than us because there are a lot of comets?
Online Facts:
1. Several types of cancer can be attributed to the presence of toxic materials in drinking water. This is interesting and new because we can make our selves get sick if we don't start doing something with out water. Many people die from cancer and it would be horrible if we all get it. We HAVE to start doing something...
2. Every 20 seconds a child dies from a water related disease. This is interesting but not new to me because it is such a short time for someone to die. I can't believe every 20 seconds someone dies. What if that was me? This shows that people should really start taking care of water. This isn't new because in South Africa everyday people would remind the citizens to save water and donate money to save these poor people who are sick or have no water.
3. A person can't live without water for a week but can live without food for about a month. This is interesting but not really new because I found out earlier that people can't live without water for a week. This is interesting because without water we won't have food so it doesn't matter if we don't have food we still won't survive without water which leads us back to the topic of saving water.
4. Over 90% of the world's supply of fresh water is located in Antarctica. This is new is new and interesting to me because I didn't know that much water came from Antarctica. If we keep on polluting, our water will start to disappear and we won't have any more sources to drink from.Site: http://www.lenntech.com/water-trivia-facts.htm
5. If the worlds water supply were only 100 litres, our usable amount of fresh water would be only about 0.003 of a litre, enough to fill half a teaspoon. This is really interesting and worrying to me because our fresh water supply is really low. This should be put up on billboards for people to see and start doing something to save our water.
Site:http://www.aqwest.wa.gov.au/Schools/WaterFacts.aspx
This article relates to the move we watched Blue Gold by speaking and showing the importance of keeping our fresh water supply safe and sound. Both express what a world without water would like in a dramatic way. Without water there will be no future and everything would be lifeless so it's time to take a stand and do something about it...
Tuesday, September 21, 2010
Current Events 21.9.2010
Dry water a savior?
-Science Daily (Web) 26.8.2010
Site: http://www.sciencedaily.com/releases/2010/08/100825174102.htm?sms_ss=blogger
Summary:
An unusual substance called Dry Water, which is made up of powdered sugar, could help store carbon dioxide and make the world more greener. It's a bright promise for several reasons. One is that it can save energy which is used to jump start chemical reactions which are used for industry products. Ben Carter, Ph.D., researcher said there is nothing quite like it. He hopes it will be making waves. It got it's name from consisting of 95% water but still staying a power. Each droplet has been surrounded by silica, the sand on beaches. Silica prevents the water to turn into liquid, meaning it keeps it a solid. Instead if turning into a liquid, the solid slurps up gases which stay in it, just like a vacuum. This process is called hydrate. Dry water was discovered in 1968 and got it's potential use for cosmetics. Scientists found out that it can store three times as much carbon dioxide uncombined with water and silica, meaning it can save us from global warming! Scientists provided other uses such as storing methane gas and transporting it and store gas. Another use would be to mix it with hydrogen gas and maleic acid to produce succinic acid, which is used in drugs, food and livestock food. Dry water can slurp up dangerous liquids and they can be transported safely.
One world:
The article "Dry Water a Savior?" connects to what we are studying currently by giving us information about chemical bonds and water being saved. It effects scientific knowledge by giving us a substance that can possibly save our future. Scientists are struggling to save our water and a little power can slurp it all up and keep it stored. This effects technology by making less machines and energy used. Energy can be consumed and kept for future generations or possible black outs. There is a bad side to this for some people. Machine makes and workers won't be needed hence no profit or money. This effects society as well because people can store water but it can also reduce jobs. Without machines there will be no workers in factories which later results to no money. But on the other hand people will have more water and be water friendly and environment friendly. The benefits are keeping the world green by saving water, energy and reducing harmful gases. The limitations are jobs for people and people who want profit. It will effect life drastically but hopefully there won't be a lot of people who wan't profit.
Analysis/Evaluation:
The scientific information was creating dry water to save our planet. The article made sense because examples and quotes were put in. I made a couple of inquiries. Firstly, when water is stored how can it be put back into a liquid? Secondly, will dry water be made into someones profit? Thirdly, when can we start using dry water? Fourthly, is it harmful?
Reflection:
From this article I learned and got a different perspective on water and the earth being green. Honestly I thought we would have no way of getting out of pollution but I was wrong. Firstly, I learned that silica can make liquid stay solid. Before I thought sand was pretty useless and now it is helping us keep our planet. Secondly, I learned what dry water is. It is a substance that slurps up gases and makes energy when modified. It can be used in food and industrial products. It can also get us into poverty if our parents or we work in a factory. Thirdly, there is something to save our planet. As I said before I believed our planet would go bad but we have a chance. A chance do make our planet a clean place again. In conclusion, dry water could be our only hope in surviving. I'm afraid it will be over priced and used to make profit. We need this to keep our planet or else we won't give our future generations a chance to even be born.
-Science Daily (Web) 26.8.2010
Site: http://www.sciencedaily.com/releases/2010/08/100825174102.htm?sms_ss=blogger
Summary:
An unusual substance called Dry Water, which is made up of powdered sugar, could help store carbon dioxide and make the world more greener. It's a bright promise for several reasons. One is that it can save energy which is used to jump start chemical reactions which are used for industry products. Ben Carter, Ph.D., researcher said there is nothing quite like it. He hopes it will be making waves. It got it's name from consisting of 95% water but still staying a power. Each droplet has been surrounded by silica, the sand on beaches. Silica prevents the water to turn into liquid, meaning it keeps it a solid. Instead if turning into a liquid, the solid slurps up gases which stay in it, just like a vacuum. This process is called hydrate. Dry water was discovered in 1968 and got it's potential use for cosmetics. Scientists found out that it can store three times as much carbon dioxide uncombined with water and silica, meaning it can save us from global warming! Scientists provided other uses such as storing methane gas and transporting it and store gas. Another use would be to mix it with hydrogen gas and maleic acid to produce succinic acid, which is used in drugs, food and livestock food. Dry water can slurp up dangerous liquids and they can be transported safely.
One world:
The article "Dry Water a Savior?" connects to what we are studying currently by giving us information about chemical bonds and water being saved. It effects scientific knowledge by giving us a substance that can possibly save our future. Scientists are struggling to save our water and a little power can slurp it all up and keep it stored. This effects technology by making less machines and energy used. Energy can be consumed and kept for future generations or possible black outs. There is a bad side to this for some people. Machine makes and workers won't be needed hence no profit or money. This effects society as well because people can store water but it can also reduce jobs. Without machines there will be no workers in factories which later results to no money. But on the other hand people will have more water and be water friendly and environment friendly. The benefits are keeping the world green by saving water, energy and reducing harmful gases. The limitations are jobs for people and people who want profit. It will effect life drastically but hopefully there won't be a lot of people who wan't profit.
Analysis/Evaluation:
The scientific information was creating dry water to save our planet. The article made sense because examples and quotes were put in. I made a couple of inquiries. Firstly, when water is stored how can it be put back into a liquid? Secondly, will dry water be made into someones profit? Thirdly, when can we start using dry water? Fourthly, is it harmful?
Reflection:
From this article I learned and got a different perspective on water and the earth being green. Honestly I thought we would have no way of getting out of pollution but I was wrong. Firstly, I learned that silica can make liquid stay solid. Before I thought sand was pretty useless and now it is helping us keep our planet. Secondly, I learned what dry water is. It is a substance that slurps up gases and makes energy when modified. It can be used in food and industrial products. It can also get us into poverty if our parents or we work in a factory. Thirdly, there is something to save our planet. As I said before I believed our planet would go bad but we have a chance. A chance do make our planet a clean place again. In conclusion, dry water could be our only hope in surviving. I'm afraid it will be over priced and used to make profit. We need this to keep our planet or else we won't give our future generations a chance to even be born.
Sunday, September 19, 2010
Water, Water, EVERYWHERE? (South Africa)
What rivers flow through your country?
The Orange River,Palmiet River, Mgeni River, Tugela River, Crocodile River (Mpumamlanga), Crocodile River (Gauteng) and the Vaal RIver.
Where do the rivers come from? (Include the countries that it flows through)
The rivers which flow through South Africa come mainly from Namibia, Botswana, Zimbabwe and Mozambique. The rest of the rivers come from South Africa or from the Ocean.
Are there any blockages? (Dams, hydroelectric plants)
In South Africa there are countless dams but not a lot of hydroelectric plants. On this link you will find all of them: http://en.wikipedia.org/wiki/List_of_reservoirs_and_dams_in_South_Africa. There are only two hydroelectric plants I know of: the Gariep Dam and the Paul Sauer Dam.
What forms of industry are located on the rivers?
Plastic industries, vehicle, and rubber.
What springs/natural reservoirs are there in your country? (Lakes, aquifers, watershed)
There are many lakes in South Africa. Here is a list: http://en.wikipedia.org/wiki/List_of_lakes_in_South_Africa
As for springs there is one major one at and it is Hot Springs. This is the largest spring that has been discovered and is sadly used for tourism. South Africa has a lot of granite and quartzite underneath it. This provides a passage way for water to pass through and be stored in an aquifer. I couldn't find any names of aquifers but there is a major one in Cape Town called Cape flats. It is huge and shared all along Cape Town. As for the other provinces I'm not sure.
Where does your country get their water supplies from? If it's from your country, do you ship/export water to different countries?
South Africa gets its water supplies from itself. It's one of the few countries where everyone has the right to a certain amount of free water. The water supplies are made in different companies such as Valpre and then is sent to Water Boards to be sanitized. Water from South Africa is sent to neighboring counties such as Namibia, Botswana, Zimbabwe and Mozambique.
How do you get water to your house?
Water in South Africa has different ways of getting to your household. The first one is like a well. Since there is a lot of granite and rock underneath the ground people tend to trap the water and make wells. The second one is through pipe line. Pipe lines transport water from tanks that have been cleaned and purified until it is good for drinking. The third option is using water from reservoirs. Many farmers have giant tanks in which they use their own water. It all depends on what kind of life style you have.
Monday, September 6, 2010
1.http://www.youtube.com/watch?v=hVK9Om4wzBM
2.http://www.youtube.com/watch?v=8ypUVpwgcAA&feature=related
3.http://www.youtube.com/watch?v=896vJj6eWYw&feature=related
4.http://www.youtube.com/watch?v=qRmNPKVEGeQ&NR=1
5.http://www.youtube.com/watch?v=vJslbQiYrYY&NR=1
6.http://www.youtube.com/watch?v=w2mj-Sq2oeo&feature=related
7.http://www.youtube.com/watch?v=5n7kBkBcXgo&NR=1
8.http://www.youtube.com/watch?v=_Pk6s1MbszA&feature=related
9.http://www.youtube.com/watch?v=zrNA8-eipGE&feature=related
Responding:
1. The first video is about what happens when you put Bromine and Alcohol. The liquid first dissolves, turns yellow, then gets some red flames in it, turns red,starts flaming and dies down.
2. This video shows what happens when you mix lithium and water. It first starts to flame up then fire starts appearing on it. In the end it just dies down.
3. This video shows what happens when u mix Cesium and water. The Cesium on the spoon just touched the water and creates a red explosion. Just like fire works!
4. This video shows what happens when you mix Potassium and water. A spoon with Potassium on it is put in the water. A black circle appears and gets set on fire. It starts
to flame and move around then just dies down.
5. What happens in this video is just that the Sodium and Potassium start to light up and bubble then just die down.
6. This video shows when you put Liquid Nitrogen into water. A bucket of Liquid Nitrogen is poured into the pool. The pool starts to get foam on it and it spreads through the whole pool. It later dies down and the "foam" is left.
7. This video shows Aluminum Foil crumpled up into a flask. Its blue and starts to foam up. Later it picks up speed and starts to be gray and hot.
8. This video shows putting a gummy bear into Sodium Chlorate. It just blows up.
9. This video just shows food dye being put into a glass and stirred. Random things are put into the glass and they create different reactions.
http://www.youtube.com/watch?v=tTffiZ7LdWg&feature=related
***BONUS: What can chemical changes tell us about the elements that are involved in the reaction?
The chemical changes tell us about the elements that are involved by how they react because for example if you use Lithium which is an alkali metal and mix it with water it it will fire up. This shows that alkali metals, alkali earth metals, transition metals, halogens and noble gases have different reactions to things hence this can tell you what element is involved due to its different reaction.
2.http://www.youtube.com/watch?v=8ypUVpwgcAA&feature=related
3.http://www.youtube.com/watch?v=896vJj6eWYw&feature=related
4.http://www.youtube.com/watch?v=qRmNPKVEGeQ&NR=1
5.http://www.youtube.com/watch?v=vJslbQiYrYY&NR=1
6.http://www.youtube.com/watch?v=w2mj-Sq2oeo&feature=related
7.http://www.youtube.com/watch?v=5n7kBkBcXgo&NR=1
8.http://www.youtube.com/watch?v=_Pk6s1MbszA&feature=related
9.http://www.youtube.com/watch?v=zrNA8-eipGE&feature=related
Responding:
1. The first video is about what happens when you put Bromine and Alcohol. The liquid first dissolves, turns yellow, then gets some red flames in it, turns red,starts flaming and dies down.
2. This video shows what happens when you mix lithium and water. It first starts to flame up then fire starts appearing on it. In the end it just dies down.
3. This video shows what happens when u mix Cesium and water. The Cesium on the spoon just touched the water and creates a red explosion. Just like fire works!
4. This video shows what happens when you mix Potassium and water. A spoon with Potassium on it is put in the water. A black circle appears and gets set on fire. It starts
to flame and move around then just dies down.
5. What happens in this video is just that the Sodium and Potassium start to light up and bubble then just die down.
6. This video shows when you put Liquid Nitrogen into water. A bucket of Liquid Nitrogen is poured into the pool. The pool starts to get foam on it and it spreads through the whole pool. It later dies down and the "foam" is left.
7. This video shows Aluminum Foil crumpled up into a flask. Its blue and starts to foam up. Later it picks up speed and starts to be gray and hot.
8. This video shows putting a gummy bear into Sodium Chlorate. It just blows up.
9. This video just shows food dye being put into a glass and stirred. Random things are put into the glass and they create different reactions.
http://www.youtube.com/watch?v=tTffiZ7LdWg&feature=related
***BONUS: What can chemical changes tell us about the elements that are involved in the reaction?
The chemical changes tell us about the elements that are involved by how they react because for example if you use Lithium which is an alkali metal and mix it with water it it will fire up. This shows that alkali metals, alkali earth metals, transition metals, halogens and noble gases have different reactions to things hence this can tell you what element is involved due to its different reaction.
Thursday, September 2, 2010
What I learned today....
Today I learned quite a few things
1. Whats the difference between a Bohr diagram and a Lewis dot
2. What elements can exchange and not
3. How many atoms can fit on different layers
4. How many electrons a certain element exchanges
KWL
Chemistry: the study of matter and dealing with the composition of substances and their properties and reactions.
What I know:
1. You add the electrons to find the element
2. There can only be 2,8 and 16 in the first, second and third layers
3. Protons are positive neutrons are zero and electrons are negative
4. Protons and electrons ALWAYS need to be even
What I want to know:
1. Why do atoms undergo physical changes?
2. Who invented the periodic table?
3. How do atoms multiply?
4. Can you see atoms with a microscope?
Tuesday, August 31, 2010
Goals
1. Improve my current events topics and improve the way I write them
2. Write more notes and more complex
3. Study harder and more accurately in order to get higher grades
4. Have a more organized notebook
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