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Subtopic: Sinking and Floating

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Resource	Grade Level	Media Type
A Boat That Floats In this video from Curious George, children build boats out of everyday materials and then predict and observe whether the boats sink or float.	K-2	QuickTime Video
Density and Buoyancy: Experimenting with Club Soda In this video segment adapted from ZOOM, the cast discovers that gas-filled bubbles act like life jackets for raisins, making them buoyant.	K-8	QuickTime Video
Density and Buoyancy: Making Eggs Float Why does an egg float in salt water? Learn about density and buoyancy in this video segment adapted from ZOOM.	K-8	QuickTime Video
Density and Buoyancy: Mixing Hot and Cold Water Watch warm water float on top of cold water in this video segment adapted from ZOOM.	K-8	QuickTime Video
Density and Buoyancy: Pouring Air into Water This video segment adapted from ZOOM offers a clever demonstration of buoyancy by showing how to pour a cup of air into a cup filled with water.	K-8	QuickTime Video
Density and Buoyancy: Testing Liquids Will a grape float in oil? Will a metal nut sink in corn syrup? Watch as the ZOOM cast tests the buoyancy of a variety of liquids and objects.	K-8	QuickTime Video
Surface Tension: Making Paper Clips Float In this video segment, the ZOOM cast relies on the surface tension of water to make paper clips float.	K-8	QuickTime Video
Using Salt to Melt Ice How can you pick up an ice cube with a string? Watch this video segment adapted from ZOOM to see how salt can help.	K-8	QuickTime Video