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| All Units | > | Unit 7 - Levers and machines | > | Investigation 2 - Compound gadgets | > | Materials |
Materials
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collection of common construction materials (cardboard, string, small pieces of wood, small milk cartons, etc.)
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2 small balls (ping pong or rubber)
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meter stick
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collection of common connection materials (glue, tape, hammer and nails, paper clips, etc.)
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