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Showing results 681 to 700 of 1480

Ten, Twenty, Thirty
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This game for one to four players uses a deck of cards to develop mental addition skills.

Bending Light
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In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.

Dancing Spaghetti
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In this chemistry activity, learners use spaghetti to explore density and chemical reactions.

Production of Oxygen
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In this chemistry activity, learners use yeast and hydrogen peroxide to generate a gas (oxygen) and test some of its properties.

Bernoulli Levitator
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Demonstrate the Bernoulli Principle using simple materials on a small or large scale.

Make Your Own Batteries!
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This activity (on page 3 of the PDF under GPS: Body Electricity Activity) is a full inquiry investigation into conductivity.

New Sense about Cents
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In this activity on page 6 of the PDF (Chemistry—It’s Elemental), learners explore some of the properties of copper using a few common household ingredients.

Paper Drop Design Competition
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Using paper, paper clips, an index card, and tape, teams of learners design flying devices to (1) stay in the air as long as possible and (2) land as close as possible to a given target.

Earthquake Science: Soil Liquefaction
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This activity demonstrates liquefaction, the process by which some soils lose their solidity during an earthquake.

Spit Test
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In this biology activity (page 8 of the PDF), learners will explore how saliva assists in the beginning of the digestive process.

"Baseketball": A Physicist Party Trick
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This trick from Exploratorium physicist Paul Doherty lets you add together the bounces of two balls and send one ball flying.

Yeast-Air Balloons
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In this activity, learners make a yeast-air balloon to get a better idea of what yeast can do. Learners discover that the purpose of leaveners like yeast is to produce the gas that makes bread rise.

Telescope Treasure Hunt
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This hands-on astronomy activity lets learners hunt for different objects in the night sky that contribute to stellar and planetary formation, using a Treasure List.

Cleaning Water with Dirt
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In this activity on page 7 of the PDF (Water in Our World), learners make their own water treatment systems for cleaning water.

Energetic Musical Instruments
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Learners design and create musical instruments from common objects; their challenge is to create an instrument that can make three different tones.

Testing Vitamin C: Chemistry's Clear Solution
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In this activity on page 8 of the PDF, learners investigate vitamin C. Learners conduct a chemistry experiment to determine if Tang drink mix or orange juice contains more vitamin C.

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

Scent Tag
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In this matchmaking activity (on page 2 of the PDF under GPS: Animal Scent Activity), learners will each have a scented cotton ball taped to their shoulder. The scent (e.g.

Magic Colored Milk
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In this chemistry activity (page 5 of the PDF), learners will use milk and a few other basic ingredients to create a chemical change to make a color wheel.

Lung Model: Make a Lung and Diaphragm
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By building a model of a lung and diaphragm, learners discover the function of various parts of the body's respiratory system.