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Players take turns adding shapes made of three squares to a grid. They try to fit their shapes on the grid in a way that blocks the other player.

free Ages 4 - 14 10 to 30 minutes
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In this activity, learners will investigate air and gravity through the use of various fabrics by through them in the air. Activity includes step-by-step instructions and extension ideas.

$1 - $5 per student Ages 4 - adult
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In this activity, learners will use Google Sky to observe features of the night sky and share their observations.

free Ages 4 - 11 10 to 30 minutes
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In this activity, learners develop an understanding of cylinders and volume as they compare two sizes of popcorn buckets.

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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In this two part activity, learners become draft detectives by constructing their own draft catchers to detect drafts around windows or doors.

$5 - $10 per student Ages 4 - 14 10 to 30 minutes
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In this fun hands-on activity, learners whip up a batch of cyber-dough (play dough) using math for measurements.

$1 - $5 per student Ages 4 - 11 30 to 45 minutes
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As learners play this strategy game, they develop understanding of squares, area, and perimeter. On each turn, a player draws a line between two dots next to each other on the grid.

free Ages 4 - 14 10 to 30 minutes
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In this activity, learners discover why some nanoscale science and technology is done in the controlled environment of a clean room, what clean rooms are like, and how scientists help keep the clean r

Over $20 per group Ages 4 - adult 10 to 30 minutes
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In this arts and crafts activity about animals and animal characteristics, learners will design animal hats and role-play as animals.

$5 - $10 per group Ages 4 - 6 10 to 30 minutes
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In this math activity, learners create their own units of measurement by making noodle rulers. Learners practice estimating and measuring objects using the noodle rulers .

$1 - $5 per student Ages 4 - 8 10 to 30 minutes
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Learners trace, cut out and fly a boomerang, outdoors or in a large indoor space.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners use their imaginations and experiment with different materials to create bug hats.

$5 - $10 per group Ages 4 - 6 10 to 30 minutes
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In this activity (on pages 41-47 of PDF), learners explore tesselating geometric patterns (repeated shapes, similar to the art of M.C. Escher).

1 cent - $1 per student Ages 4 - adult 45 to 60 minutes
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In this activity/demo about piezoelectricity, learners discover how some crystals produce electricity when squeezed.

Over $20 per group Ages 4 - adult 10 to 30 minutes
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In this activity, learners use chemistry to “self-assemble” gummy shapes. Learners discover that self-assembly is a process by which molecules and cells form themselves into functional structures.

$10 - $20 per group Ages 4 - adult 10 to 30 minutes
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In this activity, learners use cardboard bases and track tubes to make a ball run to explore the properties of mass, force, and motion.

$10 - $20 per group Ages 4 - 6 10 to 30 minutes
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In this water activity, learners discover ways to move water across the water table.

$5 - $10 per group Ages 4 - 6 10 to 30 minutes
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Learners cut and fold a paper helicopter from the template in this PDF. They practice twirling the helicopter and observe what happens as they modify their tries.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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This activity is on page 3 (continued on page 2) of the pdf, part of the Simple Machines Discovery Box. In this fun activity, learners "create" a complex machine by simulating the parts in action.

free Ages 4 - 6 10 to 30 minutes
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The goal of this activity is to design, build and test a house or toy for an animal.

$1 - $5 per group Ages 4 - 18 30 to 45 minutes