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A tub filled with water, corks, pencils, paper clips, crayons, pieces of wood, marbles, plastic spoons, bar of soap, Styrofoam, aluminum foil, commercial playdoh.
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Understand vocab: sink, float, heavy, light. observe, predict, conclusion
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Observe and discuss general properties of each item, and predict whether it might float or sink.
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After testing, talk about why it sank or floated.
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Make “boats’’ from foil and/or Styrofoam, and place items in the boats. What happens? Why?
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How can you make a ball of commercial playdoh float?
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Try this with various kinds of fruit and vegetables
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Categorize items in various ways – e.g. size, material, buoyancy, weight, etc on a divided paper. Label and read.
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Create boats from pop sticks, sponges, plastic baggies, plastic lids, paper and cardboard – be creative!
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