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Leaf it to Me

NOAA
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In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere. Learners conduct the experiment by placing a large plastic bag over a living limb...

1 cent - $1 per group Ages 6 - 14 2 to 4 hours
Apples with Appeal

American Chemical Society
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In this activity, learners investigate why apples turn brown. Learners discover that lemon juice interferes with the reaction that causes the browning.

$1 - $5 per group Ages 4 - 11 2 to 4 hours

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