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Albert Einstein proved that space bends around anything that has mass. This activity uses Jell-O's ability to bend around objects as a model for space bending around planets and stars.

$5 - $10 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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Water on Earth is in lakes, the ocean, rivers, underground, and frozen glaciers.

$10 - $20 per group Ages 8 - adult 30 to 45 minutes
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Using recycled materials, learners will design a transportation vehicle to carry an egg in an egg toss (a rudimentary model of a shock absorbent transport vessel).

$1 - $5 per group Ages 8 - adult 1 to 2 hours
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In this activity, participants will learn about how gigantic clouds of gas and dust in space, called nebulas, are formed. They'll create their own colorful model nebula using paint and a spinner.

Over $20 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners investigate what happens when you build up static electricity on plastic balls.

$10 - $20 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners use pegboard and straws to build a three-dimensional model of the periodic table.

$5 - $10 per student Ages 14 - 18 10 to 30 minutes
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By building a model of a lung and diaphragm, learners discover the function of various parts of the body's respiratory system.

1 cent - $1 per student Ages 8 - 18 45 to 60 minutes
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In the wild, small crustaceans known as brine shrimp live in marine habitats such as saltwater lakes.

$10 - $20 per group Ages 11 - 18 1 to 7 days
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In this activity, learners create a large film of soap and experiment with what can and cannot pass through it.

$10 - $20 per group Ages 8 - 18 5 to 10 minutes
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In this activity, participants will learn how stars form from the dust and gas that exists in space clumping together.

Over $20 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners use bubbles to investigate the structure and unique properties of cell membranes. Bubbles serve as macroscopic models that mimic the cells' phospholipid bilayers.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish.

$10 - $20 per group Ages 8 - 18 1 to 7 days
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In this activity, learners watch a video to learn about a couple who built a home out of shipping containers in Brooklyn, New York.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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In this activity, learners cut, fold, and paste paper representing biomolecules to create a three-dimensional cell membrane with embedded proteins.

1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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In this activity, learners explore how distance can affect the way we perceive the size of an object.

free Ages 4 - 18 5 to 10 minutes
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Learners follow directions to construct a water-powered electrical generator using a turbine made from plastic spoons.

$10 - $20 per student Ages 11 - 18 1 to 2 hours
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In this activity, learners create a working model of a nail clipper. This activity helps learners learn the basic principles of simple machines, engineering design and model building.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.

Over $20 per group Ages 4 - adult 5 to 10 minutes
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Build your own Mini Mini Golf Course and learn about hands-on building and design, basic circuitry, motion modules and more!

$5 - $10 per student Ages 8 - 18 1 to 4 weeks