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Make Your Own Weather Station
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This three-part activity shows learners how to build three meteorology tools: a wind vane, a rain gauge, and a barometer.

Scytale Messages
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In this activity, learners use a soda can to decode a secret message. Learners wrap scytale (pronounced ski-tally) code around a can and challenge friends to see if they can crack the codes.

Castles Inside and Out
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In this three-day lesson, learners identify two-dimensional shapes used in castle construction, create a castle collage using assorted shapes, and design tapestries using repeated patterns of color, s

Building an Army
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In this activity, learners explore the potential of interchangeable standard parts to create a large number of unique creations in different combinations.

Self-Assembly Game
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This is a quick game about self-assembly (page 2 of PDF under Self-Assembly Activity). Like the molecules of DNA, learners will self-assemble into a pattern by following a simple set of rules.
Odd or Even
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In this math activity, learners play a game and try to collect the most cards by guessing if the next number to appear will be odd or even.

Telephone Talk
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In this math activity, learners find patterns in telephone numbers.
Toothpick Patterns
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In this math activity, learners make toothpick designs by following simple patterns.

Achi: A Strange Game of Tic Tac Toe
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In this game, learners strategize to be the first player to make three in a row.

100 Puzzles
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In this activity, learners find as many combinations of a hundred as they can using various puzzle pieces from a hundred square grid paper.

Lift Experiment
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In this experiment, learners investigate how the size of a wing affects lift. Learners count the number of pennies an egg crate plane wing can hold until the plane will no longer fly.

No-Slip Grip
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In this physical sciences activity, learners explore friction. Learners investigate the factors that affect the force required to move an object.