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Fraction Penguin
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In this craft activity, learners will recognize, name, and compare the fractions 1/2, 1/4, and 1/8 by constructing a penguin out of portions of paper circles.

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

Jitterbugs
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In this activity, learners construct bug models that "jitter" all over the table with just a battery, motor, and counterweight.

Arctic Story Puzzles
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This activity has three story puzzles learners can solve to learn about life in the Arctic.

Shaving Cream Marbling
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In this activity, learners will create beautiful greeting cards by marbling with shaving cream and food dye. They will explore the chemistry behind the art of marbling.

Micro Automata
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In this activity, learners build small animated toys that move.

Hot Air Balloon
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In this activity, learners build a hot air balloon using just a few sheets of tissue paper and a hair dryer.

Action Figure
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In this project, students explore how levers work, by making a puppet with moving limbs.

Zipline
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In this design activity, learners create a vehicle that can transport a load, like a favorite toy or as a recycled object, from the top of a zipline to the bottom using only gravity.

Building with Wonderful Junk
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In this activity (page 4), learners work in groups to plan and build large structures using recyclable materials they have brought from home.

Rhythm Painting
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In this activity, early learners create paintings by making music and rhythm. Learners place paper in cans, add paint-soaked beans (or pebbles) and put the tops on.
Double or More
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Choose a recipe to double (or triple, quadruple, or halve). Show everyone the recipe and engage them in figuring out: How much will we need to increase the recipe to feed everyone?

Sound Off!
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This activity includes several games about animal sounds. Using their sense of hearing and communicating with various kinds of noisemakers, learners role-play predator and prey.

Atomic Mobile
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Learners make a mobile model of a carbon atom using clay, wire, and pipe cleaners.

Let's Make Music
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In this activity, learners will create their own percussion instrument with recycled materials. Learners will explore design, fabrication, cause and effect and sound through this activity.