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Curated OER
Ocean Streams
The instructions for demonstrating ocean turnover are provided in this resource. You could set this up for your earth science class as part of a lecture on convection currents or as an explanation of how ocean currents form. An animation...
Museum of Science
Museum of Science and Industry: Activities: Fly a Hot Air Balloon
Step-by-step instructions, with photos, of how to construct a hot-air balloon from tissue paper, to demonstrate that heated air expands, creating a convection current. This activity requires the use of a hot air gun and is labor-intensive.