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Coins are everyday objects which tell a lot about the people who use them.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners explore sound by constructing an instrument using some metal pipes, rubber bands, and a baseboard.

$10 - $20 per student Ages 6 - 11 30 to 45 minutes
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This is an activity exploring color and color mixing.

$5 - $10 per group Ages 4 - 6 10 to 30 minutes
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In this activity, learners observe, explore and investigate vibrating instruments in everyday places and create music in unique ways.

$1 - $5 per group Ages 4 - 8 5 to 10 minutes
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In this activity, learners explore the question "What is paper?" Learners discover the processes and materials required to make paper while experimenting with different recycled fibers and tools.

Over $20 per student Ages 8 - 18 1 to 7 days
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String Thing is an interactive online game in which learners change a virtual string's tension, length, and gauge to create different musical pitches.

free Ages 8 - 14 10 to 30 minutes
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In this activity, learners create a traditional Mexican noisemaker (a matraca) using cardboard, craft sticks, and a wooden dowel.

$1 - $5 per student Ages 6 - 18 1 to 2 hours
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In this optics activity, learners build an animation tool to make mini movies. When you spin a phenakistascope, the pictures move so quickly that your eyes and brain can't separate the images.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this activity on page 11 of the PDF, learners follow simple steps to recycle old newspaper into new paper.

$1 - $5 per student Ages 6 - 14 1 to 7 days
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In this activity, learners use clear nail polish to create a beautiful iridescent pattern on black paper. Learners discover that a thin film creates iridescent, rainbow colors.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners explore light, color and rainbows by making their own rainbow glasses.

1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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This activity guide features three related explorations to help learners ages 3-6 investigate shadows via the following science concepts: A shadow is made when an object blocks the light; you can chan

$5 - $10 per group Ages 4 - 6 45 to 60 minutes
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Learners explore three-dimensional geometric frames including cubes and tetrahedrons, as they create bubble wands with pipe cleaners and drinking straws.

$5 - $10 per group Ages 6 - 14 30 to 45 minutes
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In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.

1 cent - $1 per student Ages 11 - 14 45 to 60 minutes
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In this activity (page 2 of PDF under GPS: Garbology Activity), learners will prepare sheets of homemade recycled paper from several different source pulps.

$10 - $20 per group Ages 8 - 14 1 to 7 days
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Learners create their own piece of history by decorating, shattering, and piecing together a flowerpot "artifact".

$5 - $10 per student Ages 6 - 14 1 to 2 hours
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In this hands-on activity, learners build their own kaleidoscopes and explore how light can reflect of off surfaces such as mirrors, to produce beautiful patterns.

$1 - $5 per group Ages 6 - 11 30 to 45 minutes
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In this activity, learners explore sound by constructing tube zithers, stringed instruments from Southeast Asia and the South Pacific.

$5 - $10 per student Ages 6 - 18 45 to 60 minutes
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In this activity, learners explore color, light and shadow by creating their own puppets to hold in front of a light source.

$10 - $20 per group Ages 4 - 6 10 to 30 minutes
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In this activity, learners explore sound by constructing a simple piano out of wood and craft sticks.

$1 - $5 per student Ages 6 - 11 30 to 45 minutes