Ocean Currents Video Demonstration: Warm Water Rises While Cold Water Sinks

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Watch the video demonstration and then get inspired to carry out the experiment! See how to create a simulated ocean current by letting colored water flow out of a pinhole in a paper cup into a surrounding tub of water. Then watch up close as we let a red warm water current encounter a blue cold water current to see how the warm water layer rises to the surface and the cold water layer sinks to the bottom. In an accompanying control demonstration, two colored water currents of the same temperature encounter each other and do not separate into layers. Students learn about ocean currents and by extension about air currents, and they learn how pressure drives the flow of water. This resource contains the 5-minute video demonstration only; the 6-page lesson plan with teacher preparation and student handout is available separately here. Or purchase the entire lesson including video, teacher prep and student handout at a bundled discount here.
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30 Minutes

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Ocean Currents Video Demonstration: Warm Water Rises While
Ocean Currents Video Demonstration: Warm Water Rises While
Ocean Currents Video Demonstration: Warm Water Rises While
Ocean Currents Video Demonstration: Warm Water Rises While
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