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Showing results 61 to 79 of 79

Control a Bird’s Flight
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In this engineering design challenge, learners make a bird and then control its flight with attached strings.

Design a Microexpression Zoetrope
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In this engineering design challenge, learners animate a facial expression and make a machine (zoetrope) that plays the animation back.

Two Button Buzzer Circuit
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In this activity, learners explore an everyday situation, where either of two or more buttons can ring a buzzer.

Build a Bubble Circuit
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In this engineering design challenge, learners make a bubble maze that allows bubbles to move through a series of “on” and “off” switches.

Electric Messages: Then and Now
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In this activity, learners explore electronic communication, the Morse Code system, and advances all the way through text messaging. Learners build a simple circuit, send messages to one another.

Pulleys and Force
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In this activity, learners explore the concept of force and how pulleys are used in everyday life to make work easier.

Telescoping Periscope
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In this activity, learners explore the many uses of periscopes and how this simple device was designed and is used in many applications.

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.

Flashlights and Batteries
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In this activity, learners explore how a flashlight works, showing the electric circuit and switch functions of this everyday household item.

Straws and Pins
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In this activity, learners build bridges and cantilevers in a series of "building out" challenges with straws and pins.

Cardboard Automata
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Cardboard Automata are a playful way to explore simple machine elements while creating a mechanical sculpture.

Lever Cowboy
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In this activity, learners build a figure that moves and "comes to life" when they pull its string.

Try Your Hand at Nano
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This lesson focuses on two simple activities that younger learners can do to gain an appreciation of nanotechnology. First, learners measure their hands in nanometers.

Design and Build a Better Candy Bag
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In this activity, learners explore how product design differences can affect the success of a final product -- in this case a bag for holding candy.

Flower Engineers
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This activity (on pages 24-29) combines science and art to introduce learners to how different animal pollinators spread pollen from one plant to another, and how certain shapes, colors, and smells of

Living Bones, Strong Bones
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In this activity about engineering, nutrition, and physical activity, learners design and build a healthy bone model of a space explorer which is strong enough to withstand increasing amounts of weigh

Wind Tube
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In this activity, learners explore moving air and the physics of lift and drag by constructing homemade wind tunnels.

Working with Wind Energy
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In this activity, learners explore how wind energy can be generated on both a large and small scale.

Build Your Own Robot Arm
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In this lesson, learners develop a robot arm using common materials. Learners explore design, construction, and teamwork, as well as materials selection and use.