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This activity provides instructions for making an aircraft that can really fly using a straw and paper hoops!

$1 - $5 per student Ages 4 - 11 10 to 30 minutes
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Create 3D glasses and use them to explore color, light and optics. Fool your brain into 'seeing' three dimensions on a flat surface!

1 cent - $1 per student Ages 6 - 18 10 to 30 minutes
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In this activity, learners will experience the different states of matter using crayons as the medium. Explore matter changing between phases while recycling old crayons.

$1 - $5 per group Ages 4 - 8 5 to 10 minutes
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Find out what it would be like to have ears shaped differently from your own! Design and make different animal ears then try them out.

1 cent - $1 per student Ages 4 - 11 5 to 10 minutes
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When was the last time you took a really close look at a leaf? In this activity, learners will use leaves and simple materials to make colorful leaf rubbings.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners make their own bath bomb fizzies and experience what happens when they mix a base and an acid.

$10 - $20 per student Ages 4 - 14 10 to 30 minutes
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This activity provides step-by-step instructions on how to build a rain stick, a musical instrument originating in South America.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners create a three-dimensional sculpture while examining the characteristics of fish.

$5 - $10 per group Ages 4 - 8 30 to 45 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 (on pages 15-18 of PDF), learners make a life-size two-dimensional paper model of their own skeletons.

$1 - $5 per student Ages 4 - 11 45 to 60 minutes
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In this math activity, learners experiment with the concept of symmetry.

1 cent - $1 per student Ages 4 - 8 10 to 30 minutes
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In this activity, learners explore the concepts of density and basic chemical reactions as they create a homemade lava lamp effect using water, oil, food coloring, and Alka-Seltzer tablets.

$5 - $10 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners will discover how to make butter from scratch. One optional tips includes adding marbles to speed up the process.

$1 - $5 per group Ages 4 - 18 30 to 45 minutes
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In this activity, learners create a straw oboe to explore sound and pitch.

1 cent - $1 per student Ages 6 - 14 5 to 10 minutes
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Learners will follow a specific process to make their own paper using scrap paper, newspaper, or junk mail.

$1 - $5 per group Ages 6 - adult 1 to 2 hours
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Learners will explore the chemistry of mucous and its importance to our health by following a process to make their own replica "snot." The activity includes a time and age recommendation, a materials

$1 - $5 per group Ages 6 - adult 10 to 30 minutes
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In this simple activity (on page 2 of the PDF), learners make a crystal garden using salt, water, and a brick.

$1 - $5 per student Ages 6 - 14 1 to 7 days
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In this activity, learners create music from a series of bottles filed with water. Learners discover that the sound produced by each bottle depends on the amount of water in the bottle.

free Ages 4 - 11 10 to 30 minutes
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In this activity, learners will practice writing while making a fun messy craft. Learners will explore texture and color as well as develop writing and fine motor skills through this activity.

$1 - $5 per student Ages 4 - 14 30 to 45 minutes
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In this optics activity, learners use everyday materials to make a color wheel. When learners spin the wheel like a top, they will be surprised to see all the colors mixing together to appear white.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes