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In this chemistry activity (on page 2 of the PDF), learners corrode a penny in a cup with vinegar, salt water, and a source of iron (nails, paper clips, or twist ties).

1 cent - $1 per student Ages 6 - 14 1 to 7 days
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In this activity (on pages 22-33), learners do the kind of work genetic scientists do, sorting and comparing (images of) genetic material strands called chromosomes.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this art meets chemistry activity, early learners discover the almost magical absorbent properties of salt while creating ethereal watercolor paintings.

$5 - $10 per group Ages 4 - 6 10 to 30 minutes
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While playing a game, learners discover how the Endangered Species Act works in the United States. Learners move along a game board by answering questions correctly.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners investigate the movement caused by dispersion. Learners discover that dispersion is the random movement of objects.

1 cent - $1 per group Ages 8 - 11 1 to 7 days
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In this activity, learners investigate the properties of graphene and graphite.

Over $20 per group Ages 4 - adult 5 to 10 minutes
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Learners build a yo-yo using a piece of wood, PVC pipe, and string. In doing so, learners explore the force of gravity and angular momentum.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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Build a house you can fit inside, using cardboard tubes.

1 cent - $1 per group Ages 6 - 14 45 to 60 minutes
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Light painting is a creative activity that involves creating striking images and illusions using a camera, a light source, and a little practice.

Over $20 per group Ages 11 - adult 45 to 60 minutes
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In this activity (on page 2 of the PDF under GPS: Light and Color Activity), learners will see the illusion of colors produced by a rotating black and white image known as Benham’s Disk.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners explore what is and is not active play and how it contributes to a healthy body and mind. Making active play a routine part of every day is a key concept of the experience.

1 cent - $1 per group Ages 4 - 8 45 to 60 minutes
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This is an activity about turbidity, or the amount of sediment suspended in water.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this math lesson, learners apply the Monte Carlo method of simulation to determine a reasonable estimate.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this outdoor activity, learners work in pairs using their senses—especially touch—to learn more about individual trees.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore healthy choices related to the liquids they drink. The importance of water and milk as essential nutrients for a healthy body is the focus of the experience.

$1 - $5 per group Ages 4 - 8 45 to 60 minutes
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In this activity, learners explore dinosaurs and fossils by creating a diorama.

Over $20 per group Ages 4 - 8 1 to 2 hours
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Learners will explore the concept of angular distance, and investigate why the moon appears to be the same size as the sun during a solar eclipse, despite the sun being much larger.

1 cent - $1 per group Ages 6 - adult 5 to 10 minutes
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In this multi-step experiment (page 4 of pdf), learners study tide pools, and then drop a "wave" (a 4-pound bag of beans or birdseed) on a shell to mimic the force of crashing surf on tide pool animal

1 cent - $1 per student Ages 8 - 11 45 to 60 minutes
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Cardboard Automata are a playful way to explore simple machine elements while creating a mechanical sculpture.

$5 - $10 per student Ages 8 - adult 1 to 2 hours
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In this activity, learners use design thinking to design and build their own bridge out of household materials including adhesives and/or connectors.

$1 - $5 per student Ages 6 - 18 30 to 45 minutes