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Showing results 21 to 26 of 26

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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

free Ages 4 - adult 10 to 30 minutes
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In this activity, learners explore the concept of valve operation and how engineers have adapted valves for use in mechanical heart valve design.

Over $20 per group Ages 8 - adult 1 to 2 hours
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This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners observe hard parts of sea creatures (shells, molts, etc.) to better understand marine environments.

$10 - $20 per group Ages 4 - adult 10 to 30 minutes
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In this field study, learners discover how to collect data in the field and how their efforts can help certain animals, specifically, amphibians.

Over $20 per group Ages 8 - adult 2 to 4 hours
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In this activity, learners make a small batch of biodiesel that will work in any diesel engine. Learners use an old juice bottle as a "reactor" vessel to chemically process vegetable oil into fuel.

$10 - $20 per group Ages 14 - adult 1 to 7 days