Today in class we did a lab with corn starch and iodine. We putted a sealed bag of corn starch into a cup of water and iodine. We put water in the iodine to diluted the chemical so it will be less concentrated. We wait 15 minutes after we put the bad of corn starch in to see the results.
Before:
The solution in beaker was brown and the solution in the bag was white
After:
The solution in the beaker was dark orange like iced tea and the solution in the bag was purple.
This happen because the iodine molecules were so small they were able to go through the bag. This
is like a cell membrane. A cell membrane controls entry in and out of the cell like food and water molecules.
In the iodine case, the bag is letting iodine molecules through
I like this ab a lot because we were able to learn more about the cell with cool examples.
By : The awesome WHITEKNIGHT83
Tuesday, October 11, 2011
Monday, May 23, 2011
SSSSLLLLEEEEEEEPPPPP!(thats say sleep)
A big crisis in many teenagers life is trying to get enough sleep. Without enough sleep kids fall asleep in school and don;t get to learn that much. Studies show that when you are a baby you should get around 12 to 18 hours of sleep. When you are toddler you should get 12 to 14 hours of sleep. Also, when you age 4 to 10 you should get around 10 hours of sleep. However everything changes when you are a teenager. Teenager get around 6 to 7 hours of sleep. Teenager only get this amount of sleep for many reasons. A regular teenager usual time to sleep is around 11pm or later. Most because of watching tv. Some other common reason is communicating with others through things like texting. With a lack of sleep kids are not able to perform at the best of their abilities. No good grade, sport, or social life. Thats is why it is so important to get a lot of sleep.
SOURCE: http://www.nytimes.com/2011/05/24/health/24brody.html?_r=1&ref=science
SOURCE: http://www.nytimes.com/2011/05/24/health/24brody.html?_r=1&ref=science
Monday, May 16, 2011
Nintendo 3DS
First the nintendo ds, then the nintendo ds lite. Next came the nintendo Dsi and then the Nintendo Xl. Everyday, Nintendo working there hardest think of new ideas for the game loving fans. In March, Nintendo released its new idea into the world. The Nintendo 3DS. But what makes this device different from all the rest?
But its name you could pretty much tell that the 3DS has a 3d feature. However, it more features. Firstly, the top screen has increased in size and graphics. Secondly, this thing has a double side camera. Now the Dsi had this too but with the 3DS you get a better graphic piture. Next the thickness of the 3ds has improved. Now the top screen has more support and to make it better is still has its small size so you could fit it in your pocket. However, this device is still very fragile and vulnerable so be careful.
Next is the gameplay itself. For everyone buying a 3ds also means buying game. One of the new features on the 3ds is the Mii feature from the Wii. There are many games for the 3ds and its you are able able to play your old ds game in it. One of the new features in the 3ds for gameplay is the thumb pad. At first sit it looks very loose but believe me its on there tight. .
Another of the new features is the 3d camera. On the 3ds there are two cameras. on for regular pictures and one for 3d pictures. With the new improve graphics the camera program allows you to change up, combine, or draw on any picture you take. Lastly, with these pictures you could make you mii with them or use them in games.
Lastly, is the overall performance of the device. It has a 2.5hr battery pack for 3d mode and 5 hr battery pack for regular mode. The overall hardrive speed has increased and the A, B, X, and Y buttons has been upgrade into a more stiff buttons. The Wi-fi range has increased making it easier to get internet connection for online play.
In conclusion, The 3ds is an amazing step for the nintendo company and many are more encourage and waiting anxiously for their next creation.
Source: http://gear.ign.com/articles/115/1155978p1.html
But its name you could pretty much tell that the 3DS has a 3d feature. However, it more features. Firstly, the top screen has increased in size and graphics. Secondly, this thing has a double side camera. Now the Dsi had this too but with the 3DS you get a better graphic piture. Next the thickness of the 3ds has improved. Now the top screen has more support and to make it better is still has its small size so you could fit it in your pocket. However, this device is still very fragile and vulnerable so be careful.
Next is the gameplay itself. For everyone buying a 3ds also means buying game. One of the new features on the 3ds is the Mii feature from the Wii. There are many games for the 3ds and its you are able able to play your old ds game in it. One of the new features in the 3ds for gameplay is the thumb pad. At first sit it looks very loose but believe me its on there tight. .
Another of the new features is the 3d camera. On the 3ds there are two cameras. on for regular pictures and one for 3d pictures. With the new improve graphics the camera program allows you to change up, combine, or draw on any picture you take. Lastly, with these pictures you could make you mii with them or use them in games.
Lastly, is the overall performance of the device. It has a 2.5hr battery pack for 3d mode and 5 hr battery pack for regular mode. The overall hardrive speed has increased and the A, B, X, and Y buttons has been upgrade into a more stiff buttons. The Wi-fi range has increased making it easier to get internet connection for online play.
In conclusion, The 3ds is an amazing step for the nintendo company and many are more encourage and waiting anxiously for their next creation.
 |
| The 3ds by nintendo Credit IGN |
Source: http://gear.ign.com/articles/115/1155978p1.html
Saturday, April 2, 2011
Thursday, February 10, 2011
Toothpick Fish!
In science class we have began our toothpick fish project. We had to randomly pick and form pairs of fish alleles and the color of the fish were based on those alleles. Fish in our pond had four possible trait color which were green, red, yellow, and orange. Green was dominant (G) to red (r) and yellow (y) however red and yellow (ry) were incomplete therefore the color of the fish who had those genotype would be orange. In addition, that meant that yellow and red were recessive to green. Recessive means the traits are there but it is not shown. Dominant is the exact opposite. Dominant traits show their appearances. A fish would be green if their genotype was "GG, Gy," or "Gy". A fish would be yellow if their genotype was "yy" and the genotype for red fish would be "rr"
Genotypes of fish Key
Genotype Green = G
Color Yellow = y
Green GG Gr Gy Red = r
Red rr
Yellow yy
Orange ry
Also, when we pulled the fish alleles pairs out we organized them into four generations based on when the fish were created. The first generation started of with twelve(12) fish but in the second generation the population lowered to nine(9) because the yellow fish were unable to adapt to their surroundings therefore they died sooner than others. Adaptation is how an organism interacts with their surrounding. Furthermore, the third and fourth generation of fish both also stayed at the population of nine because there was a less chance of yellow fish to be formed.
Here are the total number of each color offspring in each generation:
Result of Fish
Environment Generation Green Red Yellow Orange
Lots of First 7 2 3 0
seaweed Second 6 2 0 1
and Algae Third 7 1 0 1
everywhere Fourth 6 2 1 0
NO seaweed
or Algae Survivors 4 2 1 0
Throughout the four generation the main way the fish were able to survive were because there was a large amount of seaweed and algae. In addition, the green, red and orange fish were able to camouflage in with the algae therefore predators were not able to find them. However, that kept the yellow fish wide open in the environment open to all the hungry predators which decreased the yellow fish population. But what would happen if a disaster happened in the pond and all green fish died because they were unable to adapt.
Rocks and soil have entered the pond therefore hiding the yellow, red, and orange fish however exposing the green. Therefore, the green fish died which again lowered the population. The population has now lowered to seven. With the green fish gone we have declared our survivors. Also the disappearance of green fish also effected the way of life in the pond. Without the green fish the population will increase greatly because now most of the fish in the pond will be yellow, red or orange since there are not many green alleles left.
Q: What would happen if the population of red fish and alleles completely disappeared due to another natural disaster and the green fish were still exposed to the predators
A: If the red fish and alleles completely disappeared than the only two color fish would be green and yellow. Therefore, when the green fish are created they would be most likely eaten and the whole population of green fish would be gone.
In conclusion, the fish population decreased from the first generation to the last due to the change in the pond habitat. Some colored fish were not able to adapt therefore they were not able to survive.
Genotypes of fish Key
Genotype Green = G
Color Yellow = y
Green GG Gr Gy Red = r
Red rr
Yellow yy
Orange ry
Also, when we pulled the fish alleles pairs out we organized them into four generations based on when the fish were created. The first generation started of with twelve(12) fish but in the second generation the population lowered to nine(9) because the yellow fish were unable to adapt to their surroundings therefore they died sooner than others. Adaptation is how an organism interacts with their surrounding. Furthermore, the third and fourth generation of fish both also stayed at the population of nine because there was a less chance of yellow fish to be formed.
Here are the total number of each color offspring in each generation:
Result of Fish
Environment Generation Green Red Yellow Orange
Lots of First 7 2 3 0
seaweed Second 6 2 0 1
and Algae Third 7 1 0 1
everywhere Fourth 6 2 1 0
NO seaweed
or Algae Survivors 4 2 1 0
Throughout the four generation the main way the fish were able to survive were because there was a large amount of seaweed and algae. In addition, the green, red and orange fish were able to camouflage in with the algae therefore predators were not able to find them. However, that kept the yellow fish wide open in the environment open to all the hungry predators which decreased the yellow fish population. But what would happen if a disaster happened in the pond and all green fish died because they were unable to adapt.
Rocks and soil have entered the pond therefore hiding the yellow, red, and orange fish however exposing the green. Therefore, the green fish died which again lowered the population. The population has now lowered to seven. With the green fish gone we have declared our survivors. Also the disappearance of green fish also effected the way of life in the pond. Without the green fish the population will increase greatly because now most of the fish in the pond will be yellow, red or orange since there are not many green alleles left.
Q: What would happen if the population of red fish and alleles completely disappeared due to another natural disaster and the green fish were still exposed to the predators
A: If the red fish and alleles completely disappeared than the only two color fish would be green and yellow. Therefore, when the green fish are created they would be most likely eaten and the whole population of green fish would be gone.
In conclusion, the fish population decreased from the first generation to the last due to the change in the pond habitat. Some colored fish were not able to adapt therefore they were not able to survive.
Sunday, January 30, 2011
TOO MUCH SNOW!
New Jersey had enough snow fall. Just last week we had our sixth snow storm in 30 days. But the weird thing was that we got snow and thunder at the same time! South Brunswick specifically, had 19 inches of snow from our last snowstorm and some say enough is enough. To make matter worse all schools were canceled. In addition, many over 400,000 people lose power which was scary because this is only January and we still have one more month to go!
With the 19 inches added to the total of snowfall we have over 50 inches! Too much snow is what I have to say and if snow keeps falling people will eventually have to give up at some point. What I recommended to people is to make sure you have shovels and a lot of salt especially if you live up north or in the east. Good Luck and make sure you stay warm.
Here are some pictures of snow!
SOURCE:
http://abcnews.go.com/US/winter-storm-east-coast-batters-record-breaking-snowstorm/story?id=12774029
With the 19 inches added to the total of snowfall we have over 50 inches! Too much snow is what I have to say and if snow keeps falling people will eventually have to give up at some point. What I recommended to people is to make sure you have shovels and a lot of salt especially if you live up north or in the east. Good Luck and make sure you stay warm.
Here are some pictures of snow!
SOURCE:
http://abcnews.go.com/US/winter-storm-east-coast-batters-record-breaking-snowstorm/story?id=12774029
 |
| Add cThree men attempt to free an automobile from the snow on New York's Upper West Side, Jan. 27 |
 | |||||||
| Jan Eggers digs out his car in New York City Jan. 27, 2011, the morning after another storm dumped more than a foot of snow in some areas overnight |
Thursday, January 13, 2011
Punnett squares!!!!!!
In class we have began the study of genetics. Genetics is the study of heredity. In addition to the fun activities we have done for genetics so far, we also began punnett square. Punnett squares shows the probability of what alleles can occur when people cross genetics. This all started from a scientist named Gregor Mendel. Mendel observed pea plants and noticed that some pea plants had the same and different traits from there parents. This discovery triggered another one. When a new organism is made the process of fertilization is formed. Fertilization is when a egg and a sperm is joined together to create a organism. Another would for fertilization for pea plants is pollination. Mendel was a smart man and he wonder; what happened if you cross pollinate? The hypothesis lead to the activity of cross pollination. Mendel took one tall pea plant and instead of pollinating it into the same type of pea plant he pollinate it into a different type of pea plant;a small pea plant. In a couple of days Mendel check the pea plants and it seemed that one plants was three fourths bigger than the other. Mendel tried again and this time he cross pollinated with four plants instead of two plants. The results was three-fourths of the plants was tall. Mendel was intrigued with the results which began the study of punnett squares.
In class we began punnett squares.
This is a punnett square. As you can see the mother traits(Top) and the father traits(Left) cross together. When looking at a punnett square you could decide what the genotype and phenotype is . Phenotype is what the organism will look like on the outside and genotype is what it really looks like from the inside is the percentage to see if the traits are homozygous or heterozygous. Heterozygous means it is different and homozygous means it is the same. In addition, homozygous could be label as dominate or recessive. Dominate and recessive are how traits are label because some traits over power other. Those traits are dominate. However, some traits are the opposite. They are recessive. For example brown eyes is dominate to blue eyes. Therefore, brown is dominate and blue eyes are recessive. Lastly, homozygous and heterozygous are label by percentage. For example 25%, 50%, 75%, and 100%.In this example above you can see that the scientist cross correctly. For phenotype is would be 75% tall and 25% short. For genotype it would be 25% homozygous dominate, 25% homozygous recessive, and 50% heterozygous. With punnett squares scientist around the world are able to solve more mysteries about genetics.
By: Whiteknight83
 |
| Gregor Mandel known for his discovery of cross pollination. |
In class we began punnett squares.
 | |||
| "A" stands for tall and "a" stands for small |
This is a punnett square. As you can see the mother traits(Top) and the father traits(Left) cross together. When looking at a punnett square you could decide what the genotype and phenotype is . Phenotype is what the organism will look like on the outside and genotype is what it really looks like from the inside is the percentage to see if the traits are homozygous or heterozygous. Heterozygous means it is different and homozygous means it is the same. In addition, homozygous could be label as dominate or recessive. Dominate and recessive are how traits are label because some traits over power other. Those traits are dominate. However, some traits are the opposite. They are recessive. For example brown eyes is dominate to blue eyes. Therefore, brown is dominate and blue eyes are recessive. Lastly, homozygous and heterozygous are label by percentage. For example 25%, 50%, 75%, and 100%.In this example above you can see that the scientist cross correctly. For phenotype is would be 75% tall and 25% short. For genotype it would be 25% homozygous dominate, 25% homozygous recessive, and 50% heterozygous. With punnett squares scientist around the world are able to solve more mysteries about genetics.
By: Whiteknight83
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