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This site describes bouyancy (the difference between the upward and downward forces acting on the bottom and the top of an object) and the Archimedes Principle, which states that the buoyant force on a submerged object is equal to the weight of the fluid that is displaced by it. It consists of text descriptions of these principles, using the examples of metal cubes suspended in water and hot air baloons ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Problem set, Ref. material
Subject: Mathematics, Physics
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