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In this activity, learners will discover what colors are in different markers, and may be surprised at the results.

$1 - $5 per student Ages 6 - 14 30 to 45 minutes
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In this activity (on pages 4-5), learners make fake snow by adding water to the super-absorbant chemical from diapers, sodium polyacrylate.

1 cent - $1 per group Ages 6 - adult 10 to 30 minutes
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In this indoor or outdoor water activity, learners pour water from small cups to large cups and containers. In doing so, they discover water takes the shape of its container.

$1 - $5 per group Ages 4 - 6 30 to 45 minutes
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In this activity, learners simulate nature's water filtration system by devising a system that will filter out both visible and invisible pollutants from water.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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This is an activity about waves. Using marbles, paper clips and rubber bands, learners explore how waves behave.

$1 - $5 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional 12-pointed star.

1 cent - $1 per group Ages 11 - 14 1 to 2 hours
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After learning that some of the chemicals we add to food crops may have harmful consequences on our health and the health of the environment, learners will create a pocket-sized card with their favori

1 cent - $1 per group Ages 6 - 14 30 to 45 minutes
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In this math puzzle game, learners work together to use algebraic reasoning and fun clues for solving word puzzles.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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This warm weather activity introduces learners to the impact trees have on blocking the sun's heat and reducing temperature on the Earth's surface.

1 cent - $1 per student Ages 4 - 14 2 to 4 hours
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In this activity, caregivers and young learners work together to make a scale from household materials to compare different weights--an essential principle in early math.

1 cent - $1 per student Ages 4 - 8 10 to 30 minutes
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In this simulation, learners model two elephant seal populations and how they change over time. Learners start with cards representing a variety of seals.

free Ages 11 - 18 45 to 60 minutes
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Make your own speaker with a magnet, wire, and paper cup! If you have a radio with a headphone plug and an old pair of headphones, this is a great tinkering activity.

$1 - $5 per student Ages 8 - adult 10 to 30 minutes
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Learners test their "light-smarts" by playing a game called "Light Quest!" The game board represents an atom and each player represents an electron that has been bumped into the atom's outer unstable

1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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Through doing these hands-on activities, learners explore the environmental consequences associated with fossil fuel usage.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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Learners will build a lung model to understand how their lungs and diaphragm work to make them breathe.

$1 - $5 per group Ages 8 - 18 30 to 45 minutes
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In this physical sciences activity, learners explore insulation. Leaners investigate how insulation can be used to slow down the conduction of heat from one side of a wall to the other.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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This activity is about collecting and analyzing DNA as part of a criminal investigation.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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Engineer and cartoonist Rube Goldberg is famous for his crazy machines that accomplish everyday tasks in overly complicated ways.

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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The "Rocket Reactions" activity is an exciting way to learn about how materials interact, behave, and change.

$5 - $10 per group Ages 6 - adult 5 to 10 minutes
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In this activity, learners play a game that models what happens as stem cells differentiate into different cell types.

$1 - $5 per group Ages 11 - 18 10 to 30 minutes