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Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.

Learners design their own experiment to investigate how pollution diffuses through ground material.

Learners design different shaped bandages for different purposes. First, they draw their designs on paper.

In this activity, a group of learners work collaboratively to design and construct a paper model showing the evolution of an environment through multiple stages, from prehistory through the modern cit