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This investigation provides learners with a hands-on activity that simulates the changing relationship of surface areas-to-volume for a growing cell.

$1 - $5 per group Ages 14 - 18 45 to 60 minutes
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In this lab (Activity #1 on page), learners explore how we see color.

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners cut wells in JELL-O© and load the wells with different detergent solutions.

$1 - $5 per student Ages 11 - 18 4 to 24 hours
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In this activity, learners experience firsthand how marine animals' adaptive coloration camouflages them from prey.

$1 - $5 per group Ages 14 - 18 45 to 60 minutes