A suggested sequence of events lays out five hands-on activities and four creative assessments on the conservation of momentum. Using spring scales and mail scales, junior physicists examine Newton's Third Law. After you have taught the...

Force the plane through the air. The lesson introduces the force on an airplane that makes it go forward. Pupils learn how Newton's laws of motion apply to flight in the eighth segment of a 22-part unit on flight.

Students discuss Newton's 2nd and 3rd laws using the example of a football linebacker and a small child pushing against each other on an ice rink. Students are able to visualize the results of the push and link it to the laws. Discussion...