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Gumdrop Chains and Shrinky Necklaces
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In this activity, learners thread gumdrops together to make a model of a polymer.

Musical Coat Hangers
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Discover how sound travels and what materials make better sound conductors. Can you hear better with your fingers in your ears? Find out with a coat hanger and some string!

By the Numbers
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Learners describe objects in a room using only numbers and shapes. They can measure the object (like a desk) and make a list of facts about it (e.g.

How Much is a Name Worth?
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In this math lesson, learners use simple addition facts to compute values (in dollars and cents) for their names.

Mirror Messages
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In this activity, learners use mirrors to write secret messages to a friend. Use this activity to explore letters, optics, and/or symmetry.

Equatorial Sundial
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In this activity, learners make an equatorial sundial, which is simple to construct and teaches fundamental astronomical concepts. Learners use the provided template and a straw to build the sundial.

Telescopes as Time Machines
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This fun, nighttime hands-on astronomy activity lets learners explore how long it takes for light from different objects in the universe to reach Earth.
Magnus Glider
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A design challenge that takes paper airplanes into an entirely different direction: a magnus glider uses cups and and rubber bands to create a glider that uses the same forces that a curveball (from b

Feather Rockets
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In this activity, learners will make and launch feather rockets. Lerners will use science process skils such as making predictions and measuring while launching the rockets.

Exploring the Solar System: Pocket Solar System
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“Exploring the Solar System: Pocket Solar System” is a hands-on activity in which visitors make a scale model of the distances between objects in our solar system.

Super Golf Tower
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In this engineering activity, challenge learners to build a tower out of 10 sheets of newspaper and 3 feet of masking tape, which can hold a golf ball balancing at the top.

Wolf Limiting Factors
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In this activity, learners simulate a wolf and its habitat and observe what happens when the limiting factors change over time.

Strong Shapes
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Is a square stronger than a triangle? Use tongue depressors to build simple shapes. Then apply a little weight to them and see what happens!

Anti-Sound Spring
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What happens when two wave pulses meet in the middle? Send waves down a spring to watch them travel and interact.

You Can Say That Again!: Text Compression
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This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases.
Fair Shares: Predict Equal Shares
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Use this activity to build division and number sense into any snack time or whenever there is a limited set of things to share among a group: If we deal these out, could everyone get two pieces?

Why is the Sky Blue?
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In this activity, learners use a flashlight, a glass of water, and some milk to examine why the sky is blue and sunsets are red.

Stereo Hanger
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In this activity, learners investigate sound wave science, in stereo! Learners construct a "stereo" out of a metal coat hanger and piece of string to explore sound vibrations.

Baseball
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In this math activity (Page 17 of the Play Ball! PDF), learners play a game of "baseball" and analyze the results of the game.

Treasure Hunters
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Learners use their opponent's clues and a compass rose to find the hidden treasure on a map. Learners use problem solving and coordinate grid skills as they hunt for treasure.