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Exploring A Hydrogel
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In this activity on page 10 of the PDF, learners develop an experiment to answer the following question: "How much water can the hydrogel in a baby diaper hold?" Use this activity to explore polymers,

What Causes Wind?
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In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.

Make Your Own Rain Stick
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This activity provides step-by-step instructions on how to build a rain stick, a musical instrument originating in South America.

Control the Flow
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In this activity about electricity, learners build and test a paper clip switch to turn on a light bulb.

Lego Mania
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In this activity, learners will put together towers using building bricks, then take the tower apart and challenge themselves to use the same bricks used to build a bridge.

Oil and Soap
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Learners investigate the properties of the liquids in two bottles. One contains layers of oil and water, and one contains oil, water, and soap.

Rockets Away!
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In this activity, learners work in teams to construct and test fly drinking straw rockets. Learners explore how changing the rockets' fins affect flight distance.

DIY Sunprints
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In this activity, learners will see how UV light affects colors over time by making their own sunprint on construction paper.

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.

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.

Spot the Sunspots
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In this activity, learners use binoculars (or a telescope) to identify and track sunspots. If using binoculars, learners need a pair that can be secured on a tripod.
Periodic Pegboard
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In this activity, learners use pegboard and straws to build a three-dimensional model of the periodic table.

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.

Curie Point
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In this activity best suited as a demonstration, learners observe that when a piece of iron gets too hot, it loses its ability to be magnetized.

Combustion
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In this chemistry activity, learners discover that the weight of the product of combustion is greater than that of the starting material.

This Spud’s for You
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Use a homemade potato launcher to explore air pressure. This activity includes simple instructions on how to build a homemade propulsion pipe using pipe, a wooden dowel and duct tape.

Make A Spinning Top
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In this activity, learners design and build a toy top out of simple, everyday materials and have the option to use the toy as an artistic tool.

Circuit Sense
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In this activity about electricity, learners identify closed and open circuits. First, learners examine and label diagrams of open and closed circuits.