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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.
From Here to There
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In this water activity, learners discover ways to move water across the water table.
Above Water: Buoyancy & Displacement
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In an investigation called "Shape It!" learners craft tiny boats out of clay, set them afloat on water and then add weight loads to them, in order to explore: how objects stay afloat in water; what th
Boats Afloat
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In this water activity, learners build boats that float and sink. First, learners listen to the book, "Who Sank the Boat" and practice making predictions throughout the story.
Bridge the Gap
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Learners work in groups to construct bridges using stale marshmallows and toothpicks.
Draggin' Boats
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Learners design, build, and test models of "dragon boats" made from up to three milk cartons.
Float Your Boat
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In this physics activity, learners will explore buoyancy.
Watercraft
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In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.
Design a Submarine
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Learners act as engineers and design mini submarines that move in the water like real submarines.
Soapy Boat
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Learners discover that soap can be used to power a boat. Learners make a simple, flat boat model, put it in water, and then add a drop of detergent at the back of the boat.
Aluminum Boats
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Test the buoyancy of an aluminum foil boat and an aluminum foil ball. Why does the same material in different shapes sink or float?
Pop Can "Hero Engine"
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In this activity, learners build water-propelled engines from soft drink cans.
Great Steamboat Race
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In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek.