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Give and Take
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In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.

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.

Electricity: Fruit Batteries
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In this activity, learners create a battery from fruit. This activity helps learners explore electricity, electrochemistry, and series circuits as well as the process of scientific inquiry.

Rockets Away
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In this activity, learners build a simple "rocket" with ordinary household materials to demonstrate the basic principles behind rocketry and the principle of reaction.

Make Pan Pipes
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This is a simple activity for learners to create a traditional musical instrument. Pan Pipes have developed all over the world in different cultures, from South America to Greece and China.

Building a 3-D Space Maze: Escher Staircase
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In this activity (page 95 of the PDF), learners create Escher Staircase models similar to those that were used by Neurolab's Spatial Orientation Team to investigate the processing of information about

Neural Network Signals
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In this activity, learners create an electrical circuit and investigate how some dissolved substances conduct electricity.

Hot Stuff!: Testing for Carbon Dioxide from Our Own Breath
Learners blow into balloons and collect their breath--carbon dioxide gas (CO2). They then blow the CO2 from the balloon into a solution of acid-base indicator.

Build A Treetop Walkway
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Build and test a scale model of a rainforest canopy walkway.

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

Rocket Pinwheel
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This is an activity about motion, power, air and Newton’s Third Law of Motion, which states that for every action there is an equal and opposite reaction.

Trip Wire
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In this activity, learners build simple alarms that they can attach to anything, such as a drawer or doorway. This activity introduces learners to electricity, circuits, and currents.

Exploring at the Nanoscale
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This lesson focuses on how nanotechnology has impacted our society and how engineers have learned to explore the world at the nanoscale.

Supporting Structures
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In this activity about living things and gravity (page 5 of PDF), learners design and build an exoskeleton or an endoskeleton for an animal of their own invention.

Motor Bird
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In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

Plastic Bag Creations
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In this activity, learners will reuse plastic bags in an interesting way.

Paddle Boat
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In this activity, learners build an old-fashioned paddle boat out of simple materials.

Above Water: Buoyancy & Displacement
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In an investigation called "Shape It!" learners craft tiny boats out of clay, set them afloat on water and then add weight loads to them, in order to explore: how objects stay afloat in water; what th

Rippin' Rockets
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In this activity, learners work in pairs to conduct a series of experiments using a balloon, drinking straw, and paper.

Kites
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In this engineering/design activity, learners make a kite, fly it, and then work to improve the design. Learners explore how their kite design variations affect flight.