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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 online activity, learners test their ability to hear different frequencies and compare their frequency range with the frequency range of other animals and insects.

free Ages 4 - 11 5 to 10 minutes