Weston

**May 15, 2009 week 4** 1.This week we have learned a lot of new facts about frogs. On Tuesday we looked at the outside of the frog. We study some of the frog’s adaptations that they have to make it easier for them to survive. One of there biggest adaptations were the nictitating membrane, which helps them to see better when they are under the water. So, as you can see we have learned a lot about frogs and there adaptations o the outside. 2. Also this week we have learned about the frogs insides. A frogs inside are much of the same as a humans insides. One of the biggest parts of the body that I thought was pretty cool is how big the liver was inside that little body. Another thing that was cool is how all those eggs could fit inside the body of a frogs and could go through there oviduct. So, those are some of the thigs we have learned in science class the last three days. 3. This week when we were dissecting frogs some questions came to mind. One of my biggest questions is how come we only had one female and all the rest were males. All of those males had to come from a female and they could not all come from one female. So that is one of my questions in science class this week.

April 23, 2009 week 3 1. During week three we have learned a lot such as kinetic energy and potential energy. Potential energy is when then energy is being stored but can be used if needed. potential energy consists of Gravitational stored mechanical, chemical, and nuclear energy. Kinetic energy is when the energy is being used and it consists of things like thermal, radiant, sound, motion, and electrical energy.

2. This week we have also learned a lot of things about how to conserve mass. We did a lab to see what would conserve its mass when we mixed baking soda and vinegar. First we mixed the baking soda in a beaker and it lost mass. The second one that we did was we mixed it a two liter bottle and it did not lose mass because there was no space for it to get out. And last of all we did it with a balloon over the top of the flask and it lost mass because it seeped through the spaces in the balloon. So this week was a good learning week. 3. Some things that interest me and i want to learn more about is chemical reactions. I also want to do morehands on activities they help me learn better because I actually get to do it. It also helps me learn because i can remember back on it and it helps me during test and quizes. April 17, 2009 week 2 1. This week during science we have learned a lot of new and interesting stuff. I learned how to make a bohr model better because last week i did not really understand how to make them every thing was still up in the air. Know that we have worked more on trying to learn them i got a lot better. I have also learned how to tell how many valence shells there are just by looking at the period it is in.

2. Also this week we have learned how to write the chemical formula to a copound. When we learned how to write the chemical formula we also learned how to find the charches or if it was a super script subscript. One way we learned how to tell weather it was a subscript was sub means under and it would be under neath the number.

April 13, 2009 Week 1 During week one we have learned a lot. First we learned how to make a bohr model with valence electrons. We also lerned that on the periodic table what ever period you are in that is how many energy levels the bohr model will have. Another thing I learned is that the group number tells you how many valence electrons will be in the outer layer. Finally I learned that the atomic mass is made up of protons and nuetrons. So that is what we learned during this week.