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In this activity, learners explore how various energy sources can be used to cause a turbine to rotate.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this outdoor activity/field trip, learners catch and observe water striders to explore their movement and feeding behaviors.

$10 - $20 per group Ages 6 - 14 1 to 2 hours
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In this multi-faceted game (on pages 25-35), learners recreate what happens to creatures in the Brazilian rain forest as they grow from egg to adult—especially those that use fallen, empty Brazil nut

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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In this classic activity, learners investigate natural selection by becoming birds foraging for food on an island.

$10 - $20 per group Ages 11 - 18 1 to 2 hours
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In this activity, learners make scale models of the Sun and Earth out of paper mache.

$5 - $10 per group Ages 8 - adult 1 to 2 hours
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In this technology activity, learners light up the room with electrifying play dough creations. Learners use conductive and insulating homemade play dough to build simple circuits.

Over $20 per group Ages 8 - 14 1 to 2 hours
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What does it mean to be alive? Is a cactus alive? Is a seed alive? Is the air we breathe alive? What are the necessary characteristics?

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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In this activity (Page 22 of PDF), learners investigate the evolution of wheat by washing different types of dough with water and comparing the results.

$10 - $20 per group Ages 8 - adult 1 to 2 hours
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In this outdoor activity, learners plan a simple foot path and create an environmental impact study of the natural area where the path would be.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners observe fly behavior and then build a flytrap.

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