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Showing results 61 to 65 of 65

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In this activity (page 13 of the PDF), learners discover how weathering and erosion change the Earth’s surface.

$10 - $20 per group Ages 11 - 14 4 to 24 hours
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This display shows the dangers of acid rain on buildings and other structures as two concrete bunny rabbits are disintegrated by sulfuric acid. Learners scrape chalk onto the concrete bunnies.

$5 - $10 per student Ages 11 - adult 10 to 30 minutes
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In this activity, learners practice the steps involved in a scientific investigation while learning why ice formations on land (not those on water) will cause a rise in sea level upon melting.

$5 - $10 per group Ages 8 - 14 2 to 4 hours
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This creative lesson plan provides a visual way for learners to gain knowledge about the finite amount of fresh water on Earth and encourages the discussion of the various ways to conserve this resour

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.

$1 - $5 per student Ages 8 - 14 5 to 10 minutes