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Salt 'n Lighter
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In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.
Ships Ahoy!
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Design a vessel that tests the limits of wind power given a set of off the shelf and recycled materials.
Design a Submarine
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Learners act as engineers and design mini submarines that move in the water like real submarines.
Cartesian Diver
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In this quick activity (page 1 of the PDF under SciGirls Activity: California Fish), learners will build a simple Cartesian Diver in an empty 2-liter bottle.