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Bike Bling
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In this activity, learners will trick out their bike with crafts and flair. Learners will explore symmetry, cause and effect and design through this activity.

Pringles Pinhole Camera
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An ordinary camera has a lens that makes an image on film. In a pinhole camera, a small hole replaces the lens.

Seed Orbs
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In this activity, learners will make seed orbs to grow new trees and plants. Learners will explore ecology and life cycles as well as stewardship through this activity.

Discovery Time: Trees
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In this activity, young learners (2 years and up) explore tree structure and biology. Tree products are explored by painitng with fruit.

Control a Bird’s Flight
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In this engineering design challenge, learners make a bird and then control its flight with attached strings.

Where Does the Wind Blow?
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In this activity, learners investigate wind by comparing the force of wind in different locations. Learners build wind-o-meters out of wooden sticks and strips of paper.

Bird Feeders
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In this activity, learners build a bird feeder or feeders to attract birds for observation.

Crystal Creations: Grow Spikes of Crystals in the Sun
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This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.

Make a Green Gumball Black
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In this optics activity, learners use a shoebox, colored cellophane and sunlight to "change" the colors of gumballs. Learners will be surprised when the green and blue gumballs appear black!

Soda Explosion
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This hands-on activity lets participant explore chemical reactions as they create a soda explosion with lots of bubbles. The bubbles in soda are made of carbon dioxide gas.

Comet Cratering
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Make impact craters with marbles (or rocks or washers) in a container of flour. Find out what you can learn about your "comets" by the craters they make.

Kidbots
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In this activity, one person acts as a human robot while another acts as their developer by programming their actions.

Shake a Shrub
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This is an activity where learners will discover what types and how many insects live in their own backyard.

Planaria Fishing
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In this activity, learners capture and observe planaria, which are worms that eat tiny pond critters.

Using a Simple Astrolabe
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In this activity, learners use an astrolabe to measure the altitude of objects. Learners will first practice taking measurements by measuring the altitude of trees and buildings.

Absorb & Repel
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In this activity, learners investigate how different materials repel or absorb water. Learners use spray bottles to explore how everyday items like sponges, cardboard, feathers, etc.

Sandy Samples
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In this collecting/comparing activity, learners work with samples of sand from different places like a lakefront, river, or ocean beach.

Is It Living?
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This activity (on pages 10-12 of the PDF) encourages learners to consider what makes living things different from non-living things.

Ocean Echolocation
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Use echolocation to find others and experience how whales’ senses have adapted to suit their environment. In pairs, learners are blindfolded and use containers filled with marbles to find each other.

Life in the Sidewalk Cracks
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In this activity, learners compare plant and animal life in different habitats including a sidewalk crack and lawn. Learners sort human-made materials and natural materials found in each habitat.