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Cool Hot Rod
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If you have access to a copper metal tube, this activity does a great job demonstrating what happens to matter when it's heated or cooled. This activity requires some lab equipment.
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Chemical Change
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In this chemistry activity, learners explore the amount of copper in a new penny. Learners use toilet bowl cleaner to hollow out the interior of a penny with zinc inside.
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Indicating Electrolysis
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Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator.
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Gieant Sieve Sorter
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This Exploratorium activity explores size and scale. Through four levels of screen sizes, learners can sort out objects of different sizes.
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Portable Potable Pressure
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In this activity, learners use plastic water bottles, wood, and water to build an inexpensive and portable tool to demonstrate one atmosphere of pressure at sea level.
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Puzzled Partners
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In this web-based activity, learners try to figure out who in an online chat room has their matching puzzle piece.
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Rubber Band newton Scale
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In this activity, learners make a simple spring-like scale using a rubber band instead of a spring, and calibrate the scale in newtons (N).