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  7. Grade 4 – Understanding...

Grade 4 – Understanding Structures and Mechanisms (Pulleys and Gears)

Grade 4 Overall Expectations:

Evaluate the impact of pulleys and gears on society and the environment.

Investigate ways in which pulleys and gears modify the speed and direction of, and the force exerted on, moving objects.

Demonstrate an understanding of the concepts of structure, strength, and stability and the factors that affect them.