This activity is a fun way for students to identify and apply the differences between physical and chemical changes. Vocabulary and concepts covered in this lesson include: chemical equation, decomposition reaction, catalyst, endothermic and exothermic.
For this lesson, I do a class demonstration of Elephant Toothpaste and Coke and Mentos first and have the students fill out the lab sheet as a group afterward. A key has been included to help you. Students can also conduct the experiments on their own as a group if you want them to.
Directions to each activity can be found on the following websites:
Coke and Mentos
These websites are also listed on the lab sheet.
This product is one in a series of labs and activities on physical and chemical properties and changes. The links below will show you the other labs and activities in this series, or you can purchase them all at a bundled price.
Cotton Candy Chemistry
Coke and Mentos & Elephant Toothpaste
Clever Candy Chemistry Bundle