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This is an activity (located on page 3 of PDF under Hockey Sticks Activity) about composites, materials made of 2 or more different components.

$1 - $5 per group Ages 8 - 14 1 to 7 days
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Computers store drawings, photographs, and other pictures using only numbers. Through this activity, learners decode numbers to create pictures using the same process that computers use.

1 cent - $1 per student Ages 8 - 14 45 to 60 minutes
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Learners work in pairs to create three simple types of bridges, a beam bridge, an arch bridge, and a suspension bridge.

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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In this activity, learners build bridges using paper and explore how much weight each bridge design can support.

1 cent - $1 per group Ages 4 - 11 45 to 60 minutes
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This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases.

1 cent - $1 per student Ages 8 - adult 30 to 45 minutes
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In this activity, learners build large-scale structures and cantilevers in a series of "building out" challenges with garden poles and tape.

$10 - $20 per group Ages 6 - 14 2 to 4 hours
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In this activity, learners explore the structural strength of triangles by creating their own free-standing geodesic dome out of plastic straws.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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Learners investigate stress and strain by designing, building, and testing beams made from polymer clay.

$1 - $5 per student Ages 11 - 18 30 to 45 minutes
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In this activity, learners build scaled-down structures and cantilevers in a series of "building out" challenges with bamboo skewers and tape.

$5 - $10 per group Ages 6 - 14 2 to 4 hours