We started the day with a review of our crystals from last class. The students brainstormed all sorts of possible uses for these crystals based on how they react with water. Over the weekend I did a few experiments on my own. I left some crystals out in the sun and I kept adding water to some of our class crystals from last week, After sharing these results with the class, I told them what the crystals were used for...SOIL MOIST! A polymer used to help those people who forget to water their plants. The crystals absorb the water and then slowly release the water as the soil dried up.
After that, we did a quick review of the steps of the scientific method and took notes in our notebooks on page 8. AS this should be a review for all of us, we went through the steps very quickly and did dome practice identifying purpose, independent and dependent variable, control and experimental groups and constants. We did 2 practice cases as a class using advertisements from television and then the kids did their own using advertisements from a magazine. Here is the powerpoint from today.
Homework tonight, if you did not already finish it is to complete the Bart Simpson handout, If you lost your copy, here it is.