By investigating forces on toys and other objects, I can predict the effect on the shape or motion of objects. 

SCN 1-07a

Benchmarks:

· Predicts and then investigates how a force can make an object change speed, direction or shape, and uses vocabulary such as pushing, pulling, stretching, squashing and twisting to describe forces.

· Investigates balanced forces and explains that if a push and pull are equal in strength and opposite in direction then there is no change in movement.