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This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

In this activity, learners build water-propelled engines from soft drink cans.

In this activity, learners explore how engineers develop pipeline systems to transport oil, water, gas, and other materials over very long distances.

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

In this activity, learners explore how civil engineers solved the challenge of moving water via irrigation.

Learners design and create musical instruments from common objects; their challenge is to create an instrument that can make three different tones.

In this engineering activity, learners design and build a mechanical arm to lift a small item.

In this activity, learners explore how engineers have developed big wheels or Ferris wheels.

In this activity, learners will engineer their own weather vane. This activity includes step-by-step instructions with pictures and a "What's Happening?" section explaining how the activity worked.

MarsBound! is an engineering simulation activity in which learners use realistic techniques to plan a mission to Mars.

In this activity, learners explore the concept of valve operation and how engineers have adapted valves for use in mechanical heart valve design.

In this activity, learners explore how watermills have helped harness energy from water through the ages.

In this engineering design challenge, learners build an air-powered spinning machine.

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

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.

In this activity, learners explore the unique challenges in transportation engineering, such as devising a method for skiers or hikers to get to the top of a mountain.

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.

In this activity, learners create a working model of a nail clipper. This activity helps learners learn the basic principles of simple machines, engineering design and model building.

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.

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