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Bonseki Salt Art
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In this activity learners will be creating art using a traditional Japanese art style.

Sound Charades
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In this game, learners create flash cards with an image on one side (of an animal, for example) and the sound that animal makes on the other.

Design a Microexpression Zoetrope
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In this engineering design challenge, learners animate a facial expression and make a machine (zoetrope) that plays the animation back.

Wear a Chimp on Your Wrist
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Learners construct a bracelet containing two strands of beads, which represents a double strand of DNA that codes for a gene. They match beads to the bases in a section of a chimp's DNA code.

Self-Portrait Silhouettes: Activity 2
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In this activity, learners make a photographic image—without a camera!

Matraca
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In this activity, learners create a traditional Mexican noisemaker (a matraca) using cardboard, craft sticks, and a wooden dowel.

Rainbow Film
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In this activity, learners use clear nail polish to create a beautiful iridescent pattern on black paper. Learners discover that a thin film creates iridescent, rainbow colors.

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.

Torsion Drum
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In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.

Circuit Bending with Play-Doh
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Break open that used musical toy and squish some Play-Doh over the circuit boards, and you will hear some weird and distorted sounds the manufacturer never intended!

Making Music in Nature
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In this activity, learners will explore the ways natural materials can produce sounds. Appropriate for any age, learners can make individual music or create a symphony with others.

Mirror, Mirror
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In this activity, learners discover that it is difficult to trace a curve by using its reflection in a mirror. Use this activity to discuss how the brain works.

Mini Zoetrope
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In this activity (posted on March 27, 2011), learners follow the steps to construct a mini zoetrope, a device that produces an illusion of action from a rapid succession of static pictures.

Nature Painting
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In this activity learners will create paint out of natural materials. Explore your natural world (or your fridge) and find berries, leaves, or flowers to find a great base for your paint.

Bug Hotel
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In this activity, learners will create a home for animal friends in their backyard using recycled materials. Some material suggestions include: pine straw and twigs.

Seeing 3D
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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!

Leaf Rubbings
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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.

Clean Me Up, Snotty
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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

Soap-Film Painting
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Make a big canvas of iridescent color with pvc pipe! In this Exploratorium Science Snack, you'll need to cut and assemble some PVC pipe, but the pay-off, the soap-bubble canvas, is big.

Slide Whistle
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In this activity, learners build a slide whistle using PVC pipe, bamboo skewer, and piece of foam. Construction of the instrument is relatively simple.