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The Geophysical Light/Dark Cycle
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This is an activity (located on page 131 of the PDF) related to sleep and circadian rhythms as well as space travel.
Future Moon: The Footsteps of Explorers
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In this activity, learners drop impactors onto layers of graham crackers!
Counting Your Lucky Stars
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In this activity, learners sample a star field to estimate the number of stars in the universe.
Challenge: Microgravity
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In this activity about the circulatory system and space travel (on page 38 of the PDF), learners use water balloons to simulate the effects of gravity and microgravity on fluid distribution in the bod
Bag of Bones
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In this activity, learners will use cereal to conduct an experiment and investigate how decreased bone density is related to increased risk of bone fracture.