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Balsa Towers
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Learners work in groups to design and build a tower out of balsa wood. As a motivator, they can compete to build a tower with the highest strength-to-weight ratio.

Building Tetrahedral Kites
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Working in teams of four, learners build tetrahedral kites following specific instructions and using specific materials.

Ball Bounce Experiment
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In this activity, learners investigate the properties of different types of balls.

Bend That Bar
Learners play the role of materials engineers as they test the flexibility of different materials.

Breaking Beams
Learners investigate stress and strain by designing, building, and testing beams made from polymer clay.

Fun with Speedboats
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In this activity, learners explore how boats are engineered to achieve speed.

Sliding and Stuttering
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Learners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor.

Ship the Chip
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In this activity, learners explore engineering package designs that meet the needs of safely shipping a product.

Hull Engineering
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In this activity, learners explore how the hull shape impacts a ship's performance and stability.

Gumdrop Dome
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In this activity (located on pages 23-24 of the PDF), learners are introduced to structural engineering and encouraged to practice goal-oriented building.

Measuring the Wind
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In this activity, learners explore how anemometers work to record wind speeds and how the equipment has undergone engineering adaptations over time.

Vectoring: Steering a Plane
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In this two part activity, learners work in pairs or individually to discover how vectoring the thrust from a jet engine affects movement of an airplane.
Simple Submarine
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Using simple, inexpensive items, learners build and test submarine models.

Bouncing Balloons
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In this sports-themed engineering activity, learners create super bouncy balls out of balloons. Learners brainstorm, test their designs, and share results.

Stop the Stretching
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Learners work with plastic sheeting, masking tape, and string to design the perfect material for plastic chair webbing, and then construct their webbing.

Four Corners
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In this design challenge activity, learners build a machine out of cardboard that runs smoothly and dependably. Learners must be precise to make sure their component works properly.

Gumdrop Dome
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In this engineering activity, learners construct sturdy geodesic structures out of gumdrops and toothpicks. Use this activity to explore engineering principles as well as sturdy shapes and triangles.

Twirling in the Breeze
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In this engineering activity, learners build a device (an anemometer) to measure how fast the wind is blowing.

Crank It Up
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In this engineering activity, learners explore simple machines and then build cardboard automata using cams.