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In this activity, learners make their own pinhole viewer in order to measure the size of the sun.

$1 - $5 per group Ages 8 - adult 10 to 30 minutes
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In this collecting/comparing activity, learners work with samples of sand from different places like a lakefront, river, or ocean beach.

$1 - $5 per group Ages 4 - 14 30 to 45 minutes
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In this outdoor activity, learners discover how the environment around a building affects the growth of plants.

$1 - $5 per group Ages 6 - 18 30 to 45 minutes