Blog Period 8 1/24/11

We are still on photosynthesis- we learned that you need food and water to grow and have energy, just like plants do. The chlorophyll provide the plants color- green, which is dark, and since dark colors atract sun, that is what plants need for photosynthesis. Plants need sunlight, water, and carbon dixoide. The formula for photosynthesis is, 6CO2+ 6H2O --> C6H2O+ 6O2.
Whatever we start with we have to end with which is conservation of mass. The mass of the plant is made of carbon dixiode and water. Soil is just like vitamins. The plants can live without it and so can we. You just won't be as healthy.

We moved on to an experiment next. Mr.Finley gave us a military drill to do to test the amounts of carbon dixiode before and after. There were two experimentors and the rest of the people in the group were the participants. The two people running the experiment had to call out either foward- which were push-ups, and then when if they said back, you had to do st-ups or curl-ups, when they told you to go, you had to run in place as fast as possible. We tested the amount of carbon dixide before, which was low, and after, which was a higher count. We came to a conclusion that as a result of physical exertion, the induvidual's carbon dixiode level increased. We have to finish answering the queations and watch the video to help you go back to them for homework.

-MM