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Touch Down
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In this design challenge activity, learners build a shock-absorbing system that will protect two “astronauts” when they land.

ANTacid: Indicator Paper on an Anthill
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In this activity, learners make acid/base indicator paper, place the indicator paper on an anthill, disturb a bunch of ants, and then observe what happens!

Space Stations: Measure Up!
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In this activity, learners work in pairs to measure each other's ankles with lengths of string.
Gelatin Optic Fibers
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In this activity, learners make optical fibers out of strips of gelatin.

Round & Round
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In this activity, learners make and test fly paper helicopters. Learners use templates to create paper helicopters and then take take turns flying them in the air.

In the Toilet
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This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.

Seed Adaptations
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By participating in a seed scavenger hunt, learners examine many adaptations of seeds, including how many seeds a plant makes, how those seeds travel to new locations, and what protects them from pred

Make Your Own Weather Station
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This three-part activity shows learners how to build three meteorology tools: a wind vane, a rain gauge, and a barometer.