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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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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 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, 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 (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 math activity, learners make toothpick designs by following simple patterns.

1 cent - $1 per student Ages 8 - 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 activity, learners will experiment with water- and air-filled balloons as a way of dampening sound before it reaches their ears.

$5 - $10 per group Ages 11 - adult 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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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
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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 craft their own model of a comet on a stick to make it fly around the room.

$1 - $5 per group Ages 4 - 11 10 to 30 minutes
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Use grape juice, baking soda, water and vinegar to make acid and base indicator paper! This activity contains a recipe and instructions for the indicator paper.

1 cent - $1 per student Ages 4 - 11 10 to 30 minutes
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In this activity, learners make a device called a phenakistoscope, which displays a continuously looping animation consisting of images drawn onto a spinning disc.

$1 - $5 per student Ages 6 - 14 30 to 45 minutes
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In this design challenge activity, learners explore the concept of biomimicry by using a natural organism's special features to design a new human object.

free Ages 8 - adult 10 to 30 minutes
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No glue is needed for learners of any age to become marshmallow architects or engineers.

1 cent - $1 per student Ages 4 - 14 30 to 45 minutes