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In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

$5 - $10 per group Ages 4 - 6 30 to 45 minutes
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Did you know that the water we use today is the same water found on Earth millions of years ago? The Earth constantly uses and recycles water in a process called the water cycle.

$5 - $10 per group Ages 8 - 14 1 to 7 days
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Learners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor.

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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In this outdoor activity/field trip, learners explore an aquatic site such as a pond, lake, stream, river or seashore to find and investigate plants and animals that live in water.

$5 - $10 per group Ages 6 - 11 1 to 2 hours
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In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.

$5 - $10 per student Ages 8 - 18 10 to 30 minutes
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This laboratory exercise is designed to show learners how DNA can easily be extracted from onion cells using simple materials.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners mimic remote sensing. Learners use a stick to measure the distance to a "planet surface" they cannot see, and create their own map of the landscape.

$5 - $10 per student Ages 6 - 11 10 to 30 minutes
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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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In this (edible) activity, learners balance chemical equations using different kinds and colors of candy that represent different atoms. Learners will work in pairs and explore conservation of atoms.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners explore properties of water and watch evaporation happen by "painting" with water in the sun.

$5 - $10 per group Ages 4 - 8 10 to 30 minutes
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In this demonstration, learners investigate mass, gravity, and acceleration by dropping a wooden bar with a balloon attached to its underside, a mass suspended from it by rubber bands, and a sharp-poi

$5 - $10 per group Ages 11 - 18 5 to 10 minutes
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This activity provides instructions for learners to create models of the Earth and then to model a "day" on Earth as well as modeling the seasons.

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners experience some of the challenges of "tele-operating" a robotic vehicle on another planet when they design and execute a series of commands to guide a human "rover" through

$5 - $10 per group Ages 8 - 18 45 to 60 minutes
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In this activity related to magnetism and electricity, learners create a magnetic field that's stronger than the Earth's magnetic field.

$5 - $10 per student Ages 8 - 14 10 to 30 minutes
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In this activity on page 12 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners examine how recyclable materials are separated by various properties at recycling centers.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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In this activity, learners model estuaries, artificially enriching both fresh and salt water samples with different amounts of nutrients and observing the growth of algae over several weeks.

$5 - $10 per group Ages 14 - 18 1 to 4 weeks
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This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon.

$5 - $10 per group Ages 6 - adult 10 to 30 minutes
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Doctors often send a sample of blood to a lab, to make sure their patients are healthy.

$5 - $10 per group Ages 8 - adult 5 to 10 minutes
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In this activity on page 9 of the PDF, learners test how flavoring extracts move through the walls of a balloon.

$5 - $10 per student Ages 8 - 14 10 to 30 minutes
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Learners work in groups to design and build a tower out of balsa wood. As a motivator, they can compete to build a tower with the highest strength-to-weight ratio.

$5 - $10 per group Ages 11 - 14 1 to 2 hours