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25 Easy Science Fair Projects for 4th Grade

25 Easy Science Fair Projects for 4th Grade

Science Fair Projects for 4th Grade. The goal of this project is to create a compound machine using pulleys and levers that would be able to lift a Barbie doll up and down by pulling a string by the player. A common problem on the playground is that you sometimes can’t find another person to go on the teeter totter with you.

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