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In this activity, learners imagine what the world might look like if we could build an elevator to space!

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 build models of comets, using edible materials, to learn about comets' structure.