The Alarm Challenge

Here is the video for the alarm challenge:

New Understanding of Chemistry

This is our new understanding of chemistry. We thought that it caused reactions, but we didn't know how it happened or what caused it to happen. We learned that we use it in everyday life; tooth paste, cooking and more. We also learned that reactions can cause a difference in temperature, color, and gas.

This is my final chemistry in a bag model. To improve my model, I would use an example of an experiment. The experiment was vinegar and baking soda. I also added in more detail, and used up more space to show everything. I also added in more vocabulary. My thinking changed because I now understand that it is not just chemicals mixing together, and it doesn't have to cause a chemical reaction. It can either be a physical or a chemical change.