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In this weather activity (page 4 of the PDF), learners will explore the water cycle through an interactive game.

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.

In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek.

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

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