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In this activity, learners explore how the power of the sun can be harnessed to heat and cool a building.

In this activity, learners explore how wind energy can be generated on both a large and small scale.

In this activity, learners discover how solar energy can be used to heat water.

Learners build a wind turbine and test it to see how much energy is created.

Learners follow directions to construct a solar oven that really cooks! The solar oven uses aluminum foil to reflect sunlight into a cooking chamber, which is painted black.

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

In this activity, learners design, build and test wind turbines. Learners go through the design process and use the scientific method to test important blade variables.

Learners follow directions to construct a water-powered electrical generator using a turbine made from plastic spoons.