bill7460
Forms of Energy
Light Energy Videos
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Force and Motion
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A Force is a Push or a Pull
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What is Force? - Bill Nye
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What is Force?
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Glacier Videos |
Light Videos |
LandformsSound Videos |
Classification Information
Simple Machine Resources...
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Wedge
Inclined Plane
Wheel & Axel
Screw
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Levers
Pulley
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