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    NASA
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    In this activity (page 18 of PDF), learners will measure the volume of impact craters created by projectiles of different masses. They will also draw connections between the mass of the projectile...

    $10 - $20 per student Ages 8 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    In this earth science/math/art activity, learners use simple ingredients to grow crystals and examine the repeating geometric shapes and patterns. Learners compare the growth of crystals from four...

    $5 - $10 per group Ages 6 - 14 1 to 4 weeks
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    NASA
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    In this activity (page 7 of PDF), learners will identify the general two-dimensional geometric shape of the uppermost cross section of an impact crater. They will also draw connections between the...

    $10 - $20 per student Ages 8 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    In this activity, learners observe mixtures of sand samples glued to note cards, and consider how sand can differ in size, shape, and color, and where it comes from. The goal is to help learners...

    1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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    Twin Cities Public Television
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    This activity (on page 2 of the PDF) is a full inquiry investigation into how a kite’s shape affects its performance. Groups of learners will select or construct kites of different shapes. Then,...

    Over $20 per group Ages 8 - 14 1 to 2 hours
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    Lawrence Hall of Science
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    In this outdoor, windy day activity, learners "fly" and race leaves along a line to discover which types of leaves catch the most wind. Which leaves are the best fliers? Why? Learners...

    $1 - $5 per group Ages 6 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site. The activity can be done with same age or mixed...

    $5 - $10 per group Ages 4 - adult 30 to 45 minutes