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In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.

Learners will build and experiment with their own windmills made from simple household materials.

In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

In this activity, learners create a model using metric measuring tapes and atmosphere composition data.