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Changing the Density of a Liquid: Adding Salt
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Learners see that a carrot slice sinks in fresh water and floats in saltwater.
Mystery Jars: Make Your Own: Estimating and Counting
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Learners make a counting/estimating jar to exchange with friends or bring home.
Design a Submarine
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Learners act as engineers and design mini submarines that move in the water like real submarines.
Build a Raft
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In this activity, learners explore density and buoyancy as they design and construct rafts.