Matt

May 15, 2009 1. On thing that i've learned thisweek is what some adaptations of a frog are. One adaptation of a frog is the skin color. it is green and has black spots. his is for camoflauge. Another adaptation is that its tongue is conected in the front of its mouth. This helps it catch its prey. One other adaptation is that it has teeth in the top of its mouth too its prey in its mouth. 2. Another thing that I learned was that America's power demands are growing rapidly. In the future the current power grids will be too small for the growing electricty demands. Scientists are researching better, more effecient was to power this country. A futer problem is plug-in hybrid cars will take lots of electricty too. 3. When will hese power grids be done?
 * Week 4

week 3 We learned about energy this week. There are two kinds of energy; kentic and and potential. There are different kinds of each of those different kinds of energy. Some of the different kinds of kenetic energy are **

One thing that i learned this week was how different metals, non metals, and metalloids react to hydrochloric acid. Most of the elements did not have any reaction, but a few of them did. The elements that reacted fizzed when we put the acid into the plastic cups. One of the elements had the chuncks float on top of the acid, but didn't do anything else except for that. Another thing that I learned was some elements break a lot easier when hit with a hammer than others. Some of the elements were malleable, but many of the others were brittle and broke easily when the presure was applied. The reason that the elements that did not break are not malleable because they are more flexable. A question i have is why did different groups have different results.
 * Week 2**

One thing that I learned last week was how to see how many velance shells there are in different elements just by looking at them. You can tell how many velance shells there are going by seeing what period that element is in. If the element is in group 1 then it has 1 velance shell, and if it is in group 2 it has 2 velence shells and so on. An