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Modeling Day and Night
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In this activity (on page 1 of the PDF), learners make a "mini-globe" to investigate the causes of day and night on our planet.
Dry Ice Comet
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In this activity, dry ice and other items are used to construct a demonstration model of a comet that illustrates the comet nucleus, coma, and tails.
Atomic Mobile
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Learners make a mobile model of a carbon atom using clay, wire, and pipe cleaners.