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In this activity, learners are challenged to design and construct a windmill to harness the power of wind.

In this design challenge activity, learners build a rubber band-powered rover that can scramble across the room.

In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.

This lesson focuses on graphene and its electrical properties and applications.

In this activity, learners explore how engineers have met the challenge of keeping foods, liquids, and other items cool.

In this activity, learners explore the engineering behind life vests or personal flotation devices and the challenges met by these devices.

This lesson focuses on how materials behave differently as their surface area increases.

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

In this activity, learners will put together towers using building bricks, then take the tower apart and challenge themselves to use the same bricks used to build a bridge.

Learners conduct two activities to investigate two properties of liquids: density and viscosity. In a clear container, learners stack 7 different liquids which will layer according to their density.

Learners investigate weight by building a spring scale. They observe and record how it responds to objects with different masses.

Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

In this activity, learners investigate passive solar building design with a focus solely on heating.

Learners cover a bottle with a balloon. When they immerse the bottle in warm water, the balloon inflates. When they immerse the bottle in a bowl of ice, the balloon deflates.

Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

Learners create beautiful fluid motion. They explore fluid dynamics, surface tension, solubility, and buoyancy while mixing liquids together.

Learners develop an understanding of air pressure in two different activities.

Learners color and cut out a spiral-shaped snake. When they hang their snake over a radiator, the snake spins.

In this engineering activity, challenge learners to construct a paper bridge that can support 100 pennies.

Learners act as engineers and design mini submarines that move in the water like real submarines.