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The Pull of the Planets
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In this activity, learners model the gravitational fields of planets on a flexible surface.

Space Stations: Sponge Spool Spine
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In this activity, learners simulate what happens to a human spine in space by making Sponge Spool Spines (alternating sponge pieces and spools threaded on a pipe cleaner).

Dunking the Planets
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

Capturing Homemade Microgravity
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This activity (page 2 of the PDF under SciGirls Activity: Microgravity) is a full inquiry investigation into how ordinary things behave in microgravity, similar to what astronauts experience.

Space Stations: Beans in Space
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In this activity, learners perform 20 arm curls with cans that simulate the weight of beans on Earth versus the weights of the same number of beans on the Moon and in space.

Kid Moon: Splat!
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In this activity, learners model ancient lunar impacts using water balloons.

Weighty Questions
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In this activity about humans and space travel (page 1 of PDF), learners compare and contrast the behavior of a water-filled plastic bag, both outside and inside of a container of water.

Making Regolith
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This lesson will helps learners answer the question: How does the bombardment of micrometeoroids make regolith on the moon?

Solar System in My Neighborhood
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In this activity, learners shrink the scale of the vast solar system to the size of their neighborhood.

Make A Map for A Treasure Hunt
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In this activity, learners will explore how maps can provide information about a place and help us find our way from one location to another.

Radar Mapping: What's in the Box?
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In this activity, learners mimic remote sensing. Learners use a stick to measure the distance to a "planet surface" they cannot see, and create their own map of the landscape.

Jump to Jupiter
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In this activity, learners help create and then navigate an outdoor course of the traditional "planets" (including dwarf planet Pluto), which are represented by small common objects.

Balloon Impacts
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In this activity, learners measure the diameter of their water balloons, model an impact, measure the diameter of the “crater” area, and determine the ratio of impactor to crater.