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Showing results 741 to 760 of 1508

Forward-Reverse Switch
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In this activity, learners build a switch to turn electrical circuits on and off.

Woodpecker
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In this activity, learners construct a traditional handicraft toy that illustrates a motion commonly associated with violins and earthquakes.

Pop! Rocket Launcher
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In this activity, learners construct a simple air pressure launcher for paper rockets.

Differing Densities: Fresh and Salt Water
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In this activity, learners visualize the differences in water density and relate this to the potential consequences of increased glacial melting.

Cranking Bird
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In this activity, learners build a mini crank machine to make a bird "fly." This engineering activity introduces learners to automata, rotational motion, cranks and cams.

Dispenser Designs
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In this activity, learners explore how engineers work in a team to solve problems.

Investigating Ice Worlds
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In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.

Temperature Tactics
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In this activity, learners explore the devices used over time to measure changes in temperature.

Launch Altitude Tracker
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In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube.

Using Ohm's Law to Build a Voltage Divider
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In this activity, learners apply Ohm’s Law to construct voltage divider circuits. Learners discover how to read resistor codes and calculate resistor values.

Colors of Stars
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In this activity, learners observe colors in the flame of a burning candle to explore connections between matter, light, color and temperature -- basic concepts of matter and energy.

Air Lift
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In this physics activity, challenge learners to lift a book with just air using a plastic bag and a straw. This activity demonstrates compressed air and forces.

A Question of Balance
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In this activity, learners explore how engineers use scales and measures when designing a manufacturing process to ensure that final products are uniform in weight or count.

Drawing Board
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The Drawing Board consists of a marking pen that remains stationary and a platform that swings beneath the pen, acting as a pendulum.

Can You Copperplate?
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In this activity, learners explore chemical engineering and how the processes of chemical plating and electroplating have impacted many industries.

Roller Coasters
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In this activity learners will build roller coasters and test them using small balls or marbles.

Our Place in Our Galaxy
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In this fun and simple hands-on astronomy activity, learners construct a model of our place in the Milky Way Galaxy and the distribution of stars, with a quarter and some birdseed.

Puff Mobile
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In this engineering activity, challenge learners to design a car using only 3 straws, 4 Lifesavers™, 1 piece of paper, 2 paper clips, tape, and scissors.

Convection Demonstration
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In this quick activity (located on page 2 of the PDF under GPS: Balloon Fiesta Activity), learners will see the effects of convection and understand what makes hot air balloons rise.

Watercraft
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In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.