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In this activity, learners explore how engineers incorporate biometric technologies into products as well as the challenges of engineers who must weigh privacy, security and other issues when designin

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

Using simple materials from around the house and recycled materials, learners will engineer a grabber device to pick up and put down objects that are at least 12 inches away.

In this activity, learners explore surgical instrument design. Teams of learners construct surgical instruments from everyday materials.

This activity teaches combustion as the interaction of a fuel source and oxygen.

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

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