10/28/08

Today's class period consisted of midterm presentations. I found the presentations today to be extremely engaging and they seemed like a great activity to keep around for my future classrooms. The first project presented today was called elephant toothpaste. The group did a great job at finding a very interesting activity. They were also very prepared in explaining how and why a chemical reaction would occur when you mixed together the ingredients that the presenters had layed out for each of our tables. During the activity, we mixed together vinegar, dish soap, and yeast. This combination caused a chemical reaction to occur. After we combined our materials in a water bottle, the reaction created foam which shot out the top of the bottle. It was pretty cool. The following presentations were over solids and liquids in which we made guap, and finally we ended the day with a presentation over bottle rockets. This group informed us on how to make them. The group then demonstrated how the ingredients mixed together, and shot off a bottle rocket. It actually worked and went pretty high into the air. Overall, i very much enjoy the science midterm presentations. Each presenter gives you a new idea that can be used in our future classrooms, along with highlighting key points to take into consideration such as safety, and construction of the project.