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Motion and forces  
SMD Forum - Primary:
Earth Science  
Educational Level:
Elementary school  
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A simple experimental apparatus made of rubber band and books is used by student teams challenged with demonstrating the concepts of friction, force, and inertia. This resource is from PUMAS - Practical Uses of Math and Science - a collection of... (View More)

The force of gravity is the focus of this demonstration using a ruler, string and a paper clip. Students observe that the Earth's gravity is always downward toward the center of the Earth. The resource is part of the teacher's guide accompanying the... (View More)

Keywords: Gravity

Students understand how satellites are placed in orbit by launching marbles into space, using two plastic rulers and clay. They describe the forces that determine the trajectory of flight. The resource is part of the teacher's guide accompanying the... (View More)

Keywords: Gravity
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