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Piecing It All Together
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Learners create their own piece of history by decorating, shattering, and piecing together a flowerpot "artifact".

Kaleid-o-mania
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In this hands-on activity, learners build their own kaleidoscopes and explore how light can reflect of off surfaces such as mirrors, to produce beautiful patterns.

Sticky Structures
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In this engineering/design/arts and crafts activity, learners design and build "platforms" or "bridges" that can hold weight, and test which glue makes the strongest structure.

Tube Zither
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In this activity, learners explore sound by constructing tube zithers, stringed instruments from Southeast Asia and the South Pacific.
Any Year Calendars
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This PDF contains 12 calendars (12 months). Each month contains activities about math. Things to do on familiar holidays (like July 4), less common holidays (like Backward Day), and any day.

Shadow Puppets
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In this activity, learners explore color, light and shadow by creating their own puppets to hold in front of a light source.

Cardboard Opaque Projector
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In this activity, learners construct a projector out of cardboard to view their favorite images (such as storybook illustrations) on the wall.

Draw a Monarch Butterfly: Scientific Illustration
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Ivy Rutzky, a scientific assistant at the American Museum of Natural History, introduces an activity where learners create a scientific illustration of a monarch butterfly.

Milk Plastic
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In this activity, learners transform everyday milk into small plastic figurines and jewelry. Use this activity to introduce learners to monomers and polymers.

Bearings for Your Whirligig
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Experiment with friction and make bearings for a whirligig! This activity is a nice introduction to friction and bearings and demonstrates why bearings are useful for spinning.

Thumb Piano
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In this activity, learners explore sound by constructing a simple piano out of wood and craft sticks.

Toy Chemistry
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In this playful, goopy activity, learners mix two liquids to create a solid (that sometimes acts like a liquid ), using basic household materials such as borax and glue.

Lever Cowboy
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In this activity, learners build a figure that moves and "comes to life" when they pull its string.

Build a Band
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In this design challenge activity, learners build a four-stringed instrument that can play a tune.

Drawing Board
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The Drawing Board consists of a marking pen that remains stationary and a platform that swings beneath the pen, acting as a pendulum.

Sound Automata
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In this activity, learners build their own sound machines and explore the interplay of motion and sound.

Design a Fish
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In this activity (page 2 of PDF under GPS: Alligator Habitat Activity), learners will study the adaptations different fish species have developed to survive in their habitats.

Invisible Ink
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In this simple chemistry activity (page 1 of PDF under SciGirls Activity: Colorblind Dogs) about acids and bases, learners will mix a baking soda and water solution and use it to paint a message on a

Greeting Card Boxes
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In this activity, learners make cool boxes out of old (or new) greeting cards or postcards.
Disappearing Water
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In this outdoor water activity, learners explore evaporation by painting with water and tracing puddles. Learners will discover that wet things become dry as the water evaporates.