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What's That Sound?
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This game plays a dozen different sounds, altered to simulate what they would sound like if you had hearing loss.

Who Do You Think You Are?
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In this activity, learners use maps to locate the Northwest Coastal region.

Bird Watching
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In this activity, learners will observe birds in their backyard or local park. They will attempt to find common Ohio birds and will look for bird behaviors just like an ornithologist.

Remote Control Roller: Experiment with Static Electricity
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This activity is an investigation of static electricity. What happens when you get "static cling?" Basically, you pile up electrons on one thing, which attracts the protons in something else.

Brain Box (Bag) of Science
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In this neuroscience activity (5th activity on the page), learners explore their sense of touch without using their senses of vision and hearing.

Exploring Earth: Temperature Mapping
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This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.

Measuring with Flubber
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In this activity learners will measure and manipulate flubber using different tools. Learners will explore volume and make observations about texture and shapes.

Head, Shoulder, Knees and Toes...and Hands, Fingers and Back
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Are fingers the only place on the body where we use our sense of touch? In this activity (6th activity on the page), learners test the touch sensitivity of different parts of the body.

Exploring Earth: Bear’s Shadow
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“Exploring Earth: Bear’s Shadow” is a hands-on activity designed primarily for young visitors and their families. Participants move a flashlight around an object to make and experiment with shadows.

Balloon Rockets
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In this activity, learners will create a model rocket out of an inflated balloon attached to a straw on a taught string.
Rainforest Plant or Animal?
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In this craft activity, learners will compare and contrast the major functions of plants and animals.

Friction Racing
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In this activity, learners explore the unseen force of friction and how surfaces can slow moving objects at different rates.

Oscillating Woodpecker
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In this activity, learners will experiment with the physics of forces - kinetic energy and friction while making a moving toy woodpecker.

Modeling the Night Sky
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In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.

Glitter Bottles
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In this activity, learners will create glitter bottles with adult supervision. These are a fun way for little ones to practice observing and making comparisons.

The Web of Life
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In this activity, learners examine ways that Native Americans of the Southwest express their relationship with nature through art.

Outrageous Ooze: Is It a Liquid or a Solid?
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This activity provides instructions for using cornstarch and water to make an ooze which has the properties of both a solid and liquid.

COSI Quicksand
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In this chemistry experiment, learners get to make a very bizarre substance using corn starch and water. Is it a solid? Is it a liquid? Or is it a different kind of substance entirely?
Pom-Pom Probability
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In this math activity, learners predict how many pom-poms they can toss inside a circle from three feet away. Use this activity to help learners explore probability.

DIY Bath Bombs
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In this activity, learners will explore acid-base reactions and create their own bubbly results.