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Leaf it to Me

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In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere.
1 cent - $1 per group Ages 6 - 14 2 to 4 hours

It's a Gas, Man

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In this activity, learners discover if carbon dioxide has an effect on temperature.
1 cent - $1 per group Ages 6 - 14 1 to 2 hours