Kaitlyn

Week 4; This week i learned all about frogs and their adaptations to their envirnment. Frogs tounges are at the front of their mouth instead of the back, this makes it so they can extend their tounge farther out. Another adaptation i saw was the color of their skin, it blends into their envirnment. And one more adaptation i found was that they have a nicitating membrane that closes when they go under water so it protects their eye but they can still see out it.

Another thing that i learned was how to correctly disect a frog and locate organs. We learned what the organs are for. Like the spleen is for storing the extra blood. When we were disecting the frogs i saw that there is a lot of extra fluid that needs to be dumped out(SICK) so that we could get to the back organs. I also learned that the female frogs have larger oviducts than the males.

I still dont understand why I had to touch the disgusting frog. It had nasty juice coming outeverytime we touched it. Its large intestine was the most disgusting part!

Week three; April 23, 09 This week i learned about the bohr models more and what the different things in it represent. like the valence shells and stuff. Also the number of protons is the same as the number of nuetrons. Another thing I learned about this week was the different energy forms.There is kinetic energy and potential energy. Kinetic energy is the energy of motion and potential is the stored energy or energy of position. There a lot of different types of energy like in the catergory of kinetic energy is thermal so like heat and stuff like that.

This week theres not really anything that i dont understand, i dont have any questions.

Week 1. **Science Journal, Monday April 13, 2009**

1.This week I learned about the periodic table. Periodic means the something is occurs or repeats at regular intervals. In the periodic the number above th leter is the atomic number and the number below is the atomic mass.Henry Mosely discovered that the atomic number made all the elements fit the periodic table perfectly. There are three types of elements; metals, non-metals, and metalloids.

2.Another thing that I learned in science was the atomic theory. Democritus thought that you could just keep dividing and eventually end up with something that cant be divided anymore. But Aristotle didnt think that democritus wasnt right. Because an atom can be divided and still be the same substance. Then the scientists found that elements combine in certain proportions based on mass to make compounds.

3. One thing that i dont really understand is the bohron models because i was gone when we went over them in class. I would like to go over that and understand it a little better.