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VocabularyUnit 2
Week 5
Gravity: A force that pulls things to the ground.
Forces: The push or pull that makes things happen.
Energy: The power needed to do work.
Motion: The movement of things.
Pressure: The force pushing on something
Speed: How fast something is moving.
Weight: How heavy something is.
Friction: How easily something moves over another.
Gear: A tool for making work easier.
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