The chemical change lesson went wonderfully! The students had to be prepared to go outside and handle chemical changes in a new environment, but they proved to be able to handle this activity and seemed to get a lot out of it!
During this activity, I practiced making the ice cream mixture inside, as a model, using different measurements, and working with fractions. Then, I held a group discussion that encouraged the students to communicate a time when they had experienced something where a chemical change had occurred. One example I was given was when a student's hair turned green
I agreed that this was an obvious chemical change. After that, many of the students wanted to share stories about when their hair turned green from swimming too much. Another student actually commented that when his mother made him eggs, it turned from a liquid to a solid!
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| pouring a specific amount of vanilla extract |
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| adding it to the mixuture |
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| pouring another specific amount of vanilla extract |
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| adding it to the mixture |
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| Exploring the physical properties of ice cream mixture |
Here is the Science lesson in Google docs, if you would like to view the lesson in a detailed format.
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