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Showing results 1841 to 1860 of 1888

Infrared Investigations
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In this activity, learners explore how infrared technology is used by engineers to create equipment and systems for a variety of industries.

Light Box
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Learn how to construct a light box by following simple figures and instructions. This guide includes tips on how to assemble a light box; related activities are featured in separate resources.

What's in the Water
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"What's in the Water" lets participants use tools to solve the mystery- what chemicals and compounds are in a sample of water?

Series and Parallel Circuits
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In this activity, learners demonstrate and discuss simple circuits as well as the differences between parallel and serial circuit design and functions.

Amazing Air
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In this activity, learners construct a small "air cannon," and use its airflow to put out a candle (lit with the help of an adult).

Let It Roll
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In this activity, learners will make their own "ball bearing" with two jar lids, marbles, and some household supplies.

Crazy Camouflage
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In this activity about camouflage, learners create a model that shows how a flounder is able to blend into a variety of environments.

Crazy About Kites
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In this activity, learners build a kite out of paper, change it, and try to make it fly even better. With their new knowledge of kite making, students can then go on to create their own kite designs.

Flinker
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In this activity, learners make a foam packing peanut "flink"--neither float away nor sink--in water. Learners experiment with materials to make a Flinker that "flinks" for 10 seconds.

Conveyor Engineering
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In this activity, learners explore the engineering behind the conveyor belt and consider the impact this invention has had on transportation and the coordinated shipping and delivery of goods.

Take Me to the (Magnet) Races
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In this activity about magnetism (page 11 of the pdf), learners will experiment with magnets to explore how opposite poles attract and similar poles repel in magnetism.

Spinning Your (Color) Wheels
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In this optics activity, learners use everyday materials to make a color wheel. When learners spin the wheel like a top, they will be surprised to see all the colors mixing together to appear white.

Make a Water Cycle Wristband
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In this activity, learners thread colored beads onto string. Each beach represent a process of the water cycle.

Pop Fly
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In this design challenge activity, learners invent a way to send a Ping-Pong ball flying high enough to catch it - like football with a twist!

Modulated Coil: Hear the magnet!
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Do you have an extra portable cassette tape player hanging around?

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.

Overlapping Spots: Make a bright spot brighter
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This perception trick focuses on conflicting information to the brain...instead of trying to see two images, you're trying to get a bright spot by overlapping the image you see through two tubes.

Production of a Gas: Controlling a Chemical Reaction
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Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles.

Why is the Sky Purple?
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.

Kicking Machine
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In this design challenge activity, learners build a machine that kicks a Ping-Pong ball into a cup lying on its side 12 inches away.