1. Teacher shows the video on ultimate chain reaction to students.
2. The teacher leads a discussion of what students noticed when watching the video. Make a chart of all the items noticed such as the force needed to knock down the next item, the kinetic energy as items move, and which object has potential energy.
3. Students are placed in groups of no more than 4 students to work as a team to create a chain reaction.
4. Students use items from around the classroom to make a chain reaction as a team.
5. Students test, evaluate, and improve their chain reactions until they work all the way through the chain.
6. Students share chain reactions with the class and use evidence from the investigation to describe changes in energy that occurred when the objects collide.
7. Students write a reflection paragraph about what they learned and must use the key terms force, cause-and-effect, potential energy, and kinetic energy.