Last week I told you why I thought the sky was blue. I have a better explanation this week. On Monday we did some research on the chapter that we are on. The chapter explains light and light reflection and the colors of things. The colors that we see are aren't actually the colors that we see. They are all the colors of the rainbow. The strongest one gets the honor of being the color of that object.
The sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. It is like when we look at the sunset we see more than one color that means that the sun has stopped reflecting the light that makes it blue.
For science we had to do a project on a particular animal from the Chaffe Zoo. My team got a Sun Conure. It is also known as the Sun Parakeet. Mrs. Poole gave us 4 papers that had what we had to research about the animal. I got "Human Interaction". I found out that if you bought a bird from a foreign island then you could not bring it into the U.S. That law was set until July 2011. The people got really mad when they found out that you couldn't bring birds in.
I also found that people don't eat the birds, like we would eat that type of bird. We don't really use the bird for anything else. The animal is sometimes used as a pet. I learned a lot from that research.
What do I think is the greatest scientific discovery ever? I think that it is the light bulb. It was created by Thomas Edison in the 1800s. Edison didn't invent the first light bulb but the first incandescent light. People had tried to create this light but came up short in the long run. Edison had tried many things to create this wonderous invention like platinum and other metals that didn''t work. He then moved to a carbon filament that was the answer.
The light bulb lasted 13 and a half hours. Edison continued to work on this invention and improve this design. He patented his design. in 1897. This design is still used today in old time places to show how people used to see things. Edison changed to the world. People thought this was impossible.
At the beginning of the year we did a quizlet. It was for this chapter of the science book. The quizlets are somewhat helpful because I can remember some of the things I write down, b ut only if I have a hard time finding a definition of the word that is closest to the one in the book. It also helps because I use it to study the last five days before the test. I use often to memorize definitions of words that I know will be on the test.
It doesn't help sometimes because I can't find the definitions in most places. I could just look at the textbook instead of going on the internet. This is a lot of work, and I could just eliminate all of that excruciating typing and the finding the words and looking at the small letters on the big screen. The quizlet helps a little.
Charles Darwin is the scientist to discover Evolution, and it's process. Charles Darwin went on a trip around the world. He discovered many things on his travels. He wrote down everything that he studied, and it is all in a journal. His theories He had some help along the way. One person that helped was Charles Malthus. He furthered Darwins Train if thought to more relative thinking. This helped in a way that, he found what hum ancestors may be, and that we may have come from a long line of Monkeys. He thought that because they also have posable thumbs also.
What exactly is the structure of DNA and what may be the proper vocabulary to call this structure. One need to know word is the double helix. The double helix is a ladder like structure and its proper name is the double helix because scientist can't go around saying the twisty ladder. The next words are the adenine and the thymine are always paired up in the structure.
What are Punnet squares? Punet squares are what are used calculate Geneology. They help find possibilities of what the phenotype what the baby may look like. Scientist draw a square and on the outside are letters. Those letters are the genotypes of the parents. A woman is XX. A man is XY. Those are used to calculate whether there will be a boy or a girl. This can also be used on plants and animals.
The scientist use punnet squares to determine a lot. They use it to determine the Phenotype of the child. This is used by scientist everywhere. It is very common. For example: a man is DD, for dimples and a woman is dd, for no dimples. The child gets dimples because The father is dominant.
In science we were learning about genealogy. We did a paper pet family. The paper pet family helped me learn a lot. I learned that genes mostly come from your parents. It only comes from a grandparent if it skips a generation. Genes are determined on whether you parents have, for example: a dark haired man and a light haired woman. The man is homozygous and the woman is homozygous. Homozygous means that they have the same gene.
The male is DD. The woman is dd. The children would have to be heterozygous and would be Dd. That is one thing I learned from the Paper Pet Family project.
Another thing I learned from the Paper Pet Family project was that you phenotype, the way you look, is determined on the way your parents genotypes.
How did peppered moths get to be their color? What color were they before? The peppered moths were, as their name presumes them, a peppered color and they lived in England. When England turned to an industrial era the trees became black. The peppered moths became too light for the trunks, and they were eaten by preditors. Some changed color to match the trunks because it was in their genes.
The ones that didn't either left the industrial site or were eaten. The ones that didn't have the black color in their genes were eaten by their predator, the bird. The black ones were safe near the industrial site. The peppered moths moved away.
How does over population and limited recourses create competition between animals? Well, some animals have to fight for food because their food is being destroyed in some areas. The frog may not have enough flies to digest. That's what causes extinction and evolution. When the insect stops going where the frogs are then the frogs are then the frog doesn't eat for a while. This is where either the frog moves of then they start to die off.
This is also where competition comes in. If the animal moves to another spot or some other animal moves in it will become a competition of the fittest. Only the strong will win. The frog that doesn't eat will become starved and may die off. This will prevent that animal from reproducing in that area. The animal may die but that other animal that was already there will reproduce. That animal that was reproduced may move to a different spot. That animal may die off in the end because that isn't it's regular habitat.
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