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In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life.

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

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