Floating Play Dough.
This experiment tests different shapes of play dough on the flotation of the dough. It states that a ball of play dough dropped in water will sink, but if you flatten the dough it will sink.
IV:the shape of the playdough
DV:if the dough floats or not
C:size of bowl, amount of water
This experiment was pretty good with the idea. The author didnt describe it in grate detail so it was alittle confusing. They were not spacific on how much dough or water. They could make it better by being more detail.
Tuesday, December 15, 2009
Drew C.
http://www.sciencedaily.com/releases/2009/12/091214200952.htm ScienceDaily, Dec. 15, 2009
Studies show that even on well maintained playgrounds there are over 200,000 injuries, doctors and scientist believe that most of these injuries resulted in falls on granite sand or wood engineered fiber. over the next two in a half years scienctist randomly studied 19 schools various playgrounds. The IV was the type of sand in the playground. The DV was the amount of injuries from each playground. I believe this experiment was not a very good one. One way it could be improved is by making sure all the kids participate in playing on the playground.
Studies show that even on well maintained playgrounds there are over 200,000 injuries, doctors and scientist believe that most of these injuries resulted in falls on granite sand or wood engineered fiber. over the next two in a half years scienctist randomly studied 19 schools various playgrounds. The IV was the type of sand in the playground. The DV was the amount of injuries from each playground. I believe this experiment was not a very good one. One way it could be improved is by making sure all the kids participate in playing on the playground.
Sarah Alnaif
"The Effect of Brain Bootcamp on Smartness." Jack Penland. December 31, 2008. sciencecentral.com.
Over the years many people have had to remember phone numbers and passwords, but who would have thought that remembering the letters and numbers could actually make smarter? Well that was an experiment performed at the University of Michigan. They created these brain excersises where the person would have to remember colored squares and match them with ones previously seen and also letters and numbers. After doing so 40% of the volunteers got smarter. This was not permanent though. The IV is whether or not the person went to the bootcamp and the DV was if they got smarter or not. This experiment could be improved by testing a broader range of age groups. As a follow-up experiment I would suggest to try this with different ethnic groups.
Over the years many people have had to remember phone numbers and passwords, but who would have thought that remembering the letters and numbers could actually make smarter? Well that was an experiment performed at the University of Michigan. They created these brain excersises where the person would have to remember colored squares and match them with ones previously seen and also letters and numbers. After doing so 40% of the volunteers got smarter. This was not permanent though. The IV is whether or not the person went to the bootcamp and the DV was if they got smarter or not. This experiment could be improved by testing a broader range of age groups. As a follow-up experiment I would suggest to try this with different ethnic groups.
Charlotte Maurno
http://www.sciencentral.com/video/2009/03/16/go-play-outside/
This experiment tested the effect of cold weather on your brain. The scientists found out that sometimes when you like you have a bad headache you could go outside in the cold and it will feel better. Also, they tested if the cold weather would make you smarter. For the conclusion, they did find that the cold weather did have an effect on your brain. I believe the experiment could be improved by having kids of all ages try it. For a follow up experiment, they could text if the warm air could have an effect of your brain.
Monday, December 14, 2009
Bennett Artman
http://http://www.sciencentral.com/video/2009/05/13/money-vs-happiness/ Money vs Happiness by Joyce Gramza Science Central.
This experiment was conducted among recent graduates of Rochester University. It tests the effect of achieving the "American Dream" opposed to achieving personal goals on physical well-being. The researchers followed reports of illnesses and happpiness rates of the graduates and one of them, chose one of the many job offers that would put him near his family; the graduate Asher Persigian said, " Without people....to share your life with, I really don't see the point." The studies show that the students were psychologically well while they were succeeding in personal goals and almost had no psychological health affect when they were doing well in terms of the "American Dream". The success in the "American Dream" seemed to increase things such as anxiety in graduates lives. A survey was released upon the graduates to test levels of intrinsic/personal goals and extrinsic/American Dream goals. It also charted the psychological position of the person being surveyed. The study finally concludes that success in the American Dream has relatively zero effect on the person compared to that of a person who achieves many personal goals.
This experiment perked my interest because I have always wondered if I should become totally independant come time to be an adult, or to be still in touch with my parents. This stimulating experiment revealed to me that I should keep in touch with family and friends so that I can maintain a healthy psychological mindset.
This experiment was conducted among recent graduates of Rochester University. It tests the effect of achieving the "American Dream" opposed to achieving personal goals on physical well-being. The researchers followed reports of illnesses and happpiness rates of the graduates and one of them, chose one of the many job offers that would put him near his family; the graduate Asher Persigian said, " Without people....to share your life with, I really don't see the point." The studies show that the students were psychologically well while they were succeeding in personal goals and almost had no psychological health affect when they were doing well in terms of the "American Dream". The success in the "American Dream" seemed to increase things such as anxiety in graduates lives. A survey was released upon the graduates to test levels of intrinsic/personal goals and extrinsic/American Dream goals. It also charted the psychological position of the person being surveyed. The study finally concludes that success in the American Dream has relatively zero effect on the person compared to that of a person who achieves many personal goals.
This experiment perked my interest because I have always wondered if I should become totally independant come time to be an adult, or to be still in touch with my parents. This stimulating experiment revealed to me that I should keep in touch with family and friends so that I can maintain a healthy psychological mindset.
Ginny Blair
http://spot.colorado.edu/~basey/photocolor1.html Cassidy Davis and others, 2003
This experiment tested the iv (different colors of light) on the dv (photosynthesis in plants). The three colors were red, blue, and green. The blue light caused the most absorption in the plant. This was a good experiment because there were many factors used to prevent error in the experiment. This experiment could be improved by having more trials and keeping the experiment going for a longer time to just make sure that the blue/ violet was the best for photosynthesis in plants. It could also be improved by using different color lights to see more interesting results. The results in this experiment surprised me. I hypothesized that the red light would cause more absorption in the plant because it is a close color to yellow like the sun. This was a very interesting experiment and i would like to try it myself.
This experiment tested the iv (different colors of light) on the dv (photosynthesis in plants). The three colors were red, blue, and green. The blue light caused the most absorption in the plant. This was a good experiment because there were many factors used to prevent error in the experiment. This experiment could be improved by having more trials and keeping the experiment going for a longer time to just make sure that the blue/ violet was the best for photosynthesis in plants. It could also be improved by using different color lights to see more interesting results. The results in this experiment surprised me. I hypothesized that the red light would cause more absorption in the plant because it is a close color to yellow like the sun. This was a very interesting experiment and i would like to try it myself.
Ben W.
"The Effects of Sleep Deprivation on Brain and Behavior." Sarah Ledoux. December 14, 2009. brynmawr.edu.
In order for your body to continue functioning, you need to sleep. Your brain has to rest and the only time for it to rest is when you are sleeping. Muscles can continue working without sleep as long as they are resting. Eventually, enough sleep deprivation can lead to death.
In this experiment, the independent variable is how long the person stays awake. The dependent variable is the damage it does to the body, the brain especially. Although this is not an actual experiment, the tests have come up with the conclusion that the less sleep you get, the worse your behavior is because of the deterioration of the brain. The only way this experiment to be improved is to test people on how much sleep they get and what it does to their brain. This is not the best experiment because it is taking other experiments and using those conclusions to make theirs. A good follow-up would be to see how much sleep a person needs.
Jeremy Cobb
"The Benguela Current Expirement." Seward Johnson. Dec. 14, 2oo9. CNN.com.
The Benguela Current is located in the south Atlantic. This experimant is to study the pathways, velocity and any changes in the flow of the current. Over 100 floats (independent variable) will measure the flow of the current (dependent variable). This experiment has no conlusion or results yet. This is a good experiment. It tests what we actually know about these currents and helps us learn more so maybe we can use these rivers under the sea to our advantage. The experiment can be improved by tracking the floats instead of just trying to run across them. A follow up experiment could test how far this current goes before it ends.
The Benguela Current is located in the south Atlantic. This experimant is to study the pathways, velocity and any changes in the flow of the current. Over 100 floats (independent variable) will measure the flow of the current (dependent variable). This experiment has no conlusion or results yet. This is a good experiment. It tests what we actually know about these currents and helps us learn more so maybe we can use these rivers under the sea to our advantage. The experiment can be improved by tracking the floats instead of just trying to run across them. A follow up experiment could test how far this current goes before it ends.
Anne Hayes M.
"Do plants grow better in different light?" Plants experiments for kids.
This experiment talks about if you change where a plant is set in the sun it will change how it grows. The I.V. is where the plants are put in the sun. The D.V. is how the plant grows. Some of the constants are the pot, the type of plant, and the type of surface it is put on, flat, hilly, bumpy ext.. This is a good experiment because people of age can do this project. Even pre-schoolers can do this. The one thing that could be improved is the specific type of pot used. The article said that paper of plastic cups could be used, I believe that the pots should be glass. The follow up experiment should be what type of plant grows better.
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Brianna R
"Molecule Madness"education. com .Inc 2006-2009
This experiment talks about water molecules and how they are positive and negatively charged. The experiment they did was putting water into a bowl and trying to float paper clips on top of the water. Once they floated some on top of the water they got another bowl and filled it with water and dropped two drops of dish soap into it. Then they tried to float paper clips on top again. The IV was the soap water. The DV was the amount of paper clips that floated. The constants were the water, the type of bowl, and the type of paper clips.
I do not feel that this was a good experiment because they were not very specific with the type of items they were using. They also did not explain the results very well at all. Explaining and being more specific with the information could improve the experiment.
Sunday, December 13, 2009
Jessica P.
Naps and Creativity. September 29, 2009. Joyce Gramza. sciencecentral.com
In this experiment scientist tested to see if naps helped creativity. Volunteers were given a test in the morning and a test in the afternoon with creative problem solving. In between test scientist hooked the people up to a machine to see their brain waves, which showed their sleep stages, and after that half of the volunteers got a nap and the other half didn't. The half that didn't sleep got to sit on a couch until the next test. This revealed weather the sleep affected the memory of the people and if the people were able to utilize the problems from the morning to help them in the afternoon. The independent variable would be the amount of sleep you got(if you got a nap or not) and the dependent would be if the amount of sleep affected your memory or your ability to utilize the information in the morning in the afternoon testing. The conclusion was that the napping did not affect the memory but did help the people utilize the information from the morning in the afternoon testing. I thought this was a good experiment because it showed how sleeping affected you memory and your ability to use previous information learned in later circumstances. It could be improved though by making sure everyone gets the same amount of sleep because it takes different people a different amount of time to fall asleep and different people sleep better than others. A good experiment to follow this one would be to see if how long you sleep at night affects how you function during your daily activities.
In this experiment scientist tested to see if naps helped creativity. Volunteers were given a test in the morning and a test in the afternoon with creative problem solving. In between test scientist hooked the people up to a machine to see their brain waves, which showed their sleep stages, and after that half of the volunteers got a nap and the other half didn't. The half that didn't sleep got to sit on a couch until the next test. This revealed weather the sleep affected the memory of the people and if the people were able to utilize the problems from the morning to help them in the afternoon. The independent variable would be the amount of sleep you got(if you got a nap or not) and the dependent would be if the amount of sleep affected your memory or your ability to utilize the information in the morning in the afternoon testing. The conclusion was that the napping did not affect the memory but did help the people utilize the information from the morning in the afternoon testing. I thought this was a good experiment because it showed how sleeping affected you memory and your ability to use previous information learned in later circumstances. It could be improved though by making sure everyone gets the same amount of sleep because it takes different people a different amount of time to fall asleep and different people sleep better than others. A good experiment to follow this one would be to see if how long you sleep at night affects how you function during your daily activities.
Wim Quier 12/13/09-The Effect of Soda on Tooth Enamel
http://www.ask.com/web?qsrc=2352&o=0&l=dir&q=the+effect+of+soda+on+teeth
This article is about how the acidity in soda erodes your tooth enamel. The IV in this experiment is the type of soda. Some sodas have more acidity than other. The DV would be the amount enamal that erodes. If a drink has a acidity of 7 it is neutral anything less can erode enamel. The result of this experiment is the sodas with less acidity erode more enamel.
This article is about how the acidity in soda erodes your tooth enamel. The IV in this experiment is the type of soda. Some sodas have more acidity than other. The DV would be the amount enamal that erodes. If a drink has a acidity of 7 it is neutral anything less can erode enamel. The result of this experiment is the sodas with less acidity erode more enamel.
Tuesday, December 1, 2009
Jessica S.
"The Great Sodium Disaster Of 1998." Ask.com. 12/1/09.
This article talks about an experiment that tested the reaction of sodium metal with water. Sodium will react with a lot of things, including the oxygen in atmosphere, so their experiment needed to be safe. Their plan was to lower a block of sodium metal into a PVC pipe which led into a container with about 4.0 L of water. They placed probes inside the container to record the data. The IV was the sodium metal and the DV was the reaction of the water mixed with the sodium metal. The results were, they said, disappointing because the force blew the bottom of the container off.
The experiment was quite interesting and I learnt many things about sodium and sodium metal. I don't think the experiment was a very good one and I don't know why I think that.I think it is partly because the article did not give enough information about the experiment or it's results.
This article talks about an experiment that tested the reaction of sodium metal with water. Sodium will react with a lot of things, including the oxygen in atmosphere, so their experiment needed to be safe. Their plan was to lower a block of sodium metal into a PVC pipe which led into a container with about 4.0 L of water. They placed probes inside the container to record the data. The IV was the sodium metal and the DV was the reaction of the water mixed with the sodium metal. The results were, they said, disappointing because the force blew the bottom of the container off.
The experiment was quite interesting and I learnt many things about sodium and sodium metal. I don't think the experiment was a very good one and I don't know why I think that.I think it is partly because the article did not give enough information about the experiment or it's results.
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