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Signs of Change: Studying Tree Rings

Climate Change North
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In this very hands-on lesson, learners will investigate dendrochronology (the study of tree rings to answer ecological questions about the recent past) and come up with conclusions as to what...

1 cent - $1 per group Ages 8 - 14 2 to 4 hours
As the Rotor Turns: Wind Power and You

WGBH
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In this engineering activity, learners will get acquainted with the basics of wind energy and power production by fabricating and testing various blade designs for table-top windmills constructed...

Over $20 per group Ages 11 - 14 2 to 4 hours
Collect Invertebrates to Determine Water Quality

Twin Cities Public Television
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This activity (located on page 3 of the PDF under GPS: Alligator Habitat Activity) is a full inquiry investigation into organisms and the health of their ecosystems. Groups of learners will net and...

$5 - $10 per group Ages 8 - 14 2 to 4 hours

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