Oct. 28, 2008

October 28, 2008

This Tuesday in class we continued with the presentations. Maddy and McKenzy taught a lesson on chemcial reaction. They taught reactants and products. Their experiment was a mix of hydrogen peroxide, dawn, active yeast, and water. The yeast catalyzed the decomposition and caused it to foam over the bottle top. The next lesson and activity was by Breanna and Brittany. They did bottle rockets. With a mix of vinegar, and a drop of baking soda, a bottle rocket is formed. This activity was really neat, I didn't know that is what would happen. This could be a very dangerous activity so the safety concerns were included in a great way. We had to wear goggles, an apron, and then step away. Nate and Ashley went next and presented a lesson about oil spills. I really enjoyed this lesson because it talked about a real life situation. Oil spills can effect animals lives and this was really neat how they talked about it and showed it.I learned that water on feathers just comes off, but oil sticks. That is why animals are threatened when these spills happen. The last lesson and activity of the day was Eli and Louree. They did OOblak, which is a mixture of cornstarch and water. I liked the way they started off the presentation with dividing the groups up with colored cards. This is very effective for class and splitting groups up to have different jobs. I think I will for sure use that strategy in class.