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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 create a small explosion by collecting hydrogen and oxygen gas together and squeezing them into a flame.

Learners make a refrigerator that works without electricity. The pot-in-pot refrigerator works by evaporation: a layer of sand is placed between two terra cotta pots and thoroughly soaked with water.

Learners build models of sinkholes to gain an intuitive knowledge of their physical aspects.

Learners will explore the scientific mystery behind a disappearing group of trees by examining data and attempting to explain the decline.