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In this activity, learners will create a diagram of the ocean zones and determine what organisms live in each zone.

$1 - $5 per group Ages 4 - 18 45 to 60 minutes
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

free Ages 4 - adult 10 to 30 minutes
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Learners design different shaped bandages for different purposes. First, they draw their designs on paper.

$1 - $5 per student Ages 4 - 14 30 to 45 minutes
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Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

$5 - $10 per group Ages 4 - 14 30 to 45 minutes
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In this activity learners will build a neighborhood out of blocks and cardboard.

$5 - $10 per group Ages 4 - 11 45 to 60 minutes
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In this activity, learners explore what makes a boat float and sink. They examine and test various objects to determine why objects float or sink.

$5 - $10 per group Ages 4 - 8 45 to 60 minutes
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Learners make a counting/estimating jar to exchange with friends or bring home.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners will build thier own balance scale. Learners will explore weight and comparison through this activity.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners will make a marionette puppet and put on a show. Learners will explore color, design, fabrication and storytelling through this activity.

$5 - $10 per group Ages 4 - 14 30 to 45 minutes
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This is a deceptively simple game to teach strategy, planning, and pattern analysis. In this game, learners take turns removing tokens from a board, and develop a plan to take the last piece.

free Ages 4 - 14 10 to 30 minutes
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In this activity, learners construct a simple air pressure launcher for paper rockets.

$10 - $20 per group Ages 4 - 14 1 to 2 hours
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In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.

$1 - $5 per group Ages 4 - 11 1 to 2 hours
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Los Momentos de Mixing in Math son actividades de 5 a 10 minutos que mantienen a los chicos ocupados, aprendiendo sobre el mundo, y usando matemáticas por su cuenta.

free Ages 4 - adult Under 5 minutes
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In this activity learners will build roller coasters and test them using small balls or marbles.

$5 - $10 per group Ages 4 - adult 10 to 30 minutes
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In this activity, learners explore patterns and sequences as they observe fictional plant growth.

$1 - $5 per group Ages 4 - 8 10 to 30 minutes
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In this math activity, learners pretend there is a special store that lets you pay for toys by their height in pennies.

$1 - $5 per student Ages 4 - 8 5 to 10 minutes
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In this math activity, learners pretend there is a special store that lets you pay for toys by their weight in pennies.

1 cent - $1 per student Ages 4 - 8 5 to 10 minutes
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In this activity, learners will repurpose an old t-shirt to create their own yarn or string.

$1 - $5 per student Ages 4 - 14 30 to 45 minutes
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In this activity, learners will estimate how many seeds are in a fruit or vegetable, then count to find out. The result: mix estimation with healthy eating.

1 cent - $1 per group Ages 4 - 14 10 to 30 minutes
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Create your own spinning top, and explore color, shapes and spinning. This activity contains instructions for making your spinning top, and tips on how to design and decorate it.

1 cent - $1 per student Ages 4 - 8 5 to 10 minutes