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Using indirect methods, learners determine the shape and size of a piece of carpet hidden under a piece of plywood.

$10 - $20 per group Ages 14 - 18 30 to 45 minutes
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Learners turn over a random selection of cards from a larger set. From the words revealed, they try to determine the sentence represented on the larger set of cards.

1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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Learners investigate a pre-constructed mystery tube to determine its interior mechanism.

$1 - $5 per student Ages 11 - adult 30 to 45 minutes
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Learners use scientific processes to solve a crime. As they get clues, learners must create a hypothesis then adjust that hypothesis as more information is revealed.

1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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In this lesson, learners are challenged to discover the relationship among six numbers.

free Ages 11 - 18 30 to 45 minutes
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In this hands-on activity, learners will construct a scuba diver that can float in order to explore how sea creatures stay neutrally buoyant in the ocean and to see what kinds of forces might be influ

$5 - $10 per group Ages 11 - 14 30 to 45 minutes
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A group of learners has an envelope containing a series of bank checks. A few checks are removed at a time, and the team attempts to construct a plausible scenario which involves those checks.

free Ages 11 - 18 30 to 45 minutes
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Learners explore the physical properties of a variety of balls and how they bounce.

$1 - $5 per group Ages 11 - 18 30 to 45 minutes
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Learners imagine they are paleontologists in Florida, where they find (remove from envelope) paper "fossils" of some unknown creature, only a few at a time.

1 cent - $1 per group Ages 8 - 18 30 to 45 minutes