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In this activity (on page 2 of PDF under GPS: Roller Coaster Design Activity), learners will use food cans of many different properties (sizes, shapes, and weights) and set two cans on their sides at

In this chemistry activity, learners are asked to form a hypothesis about the behavior of milk as household detergents act upon it.

Each learner chews a piece of gum until it loses its flavor, and then leaves the gum to dry for several days.