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Learners conduct an experiment to determine the rate at which two materials, sand and water, heat up and cool down.

Using indirect methods, learners determine the shape and size of a piece of carpet hidden under a piece of plywood.

Learners build a pendulum from a yo-yo, and then design their own experiment to determine what affects the pendulum's period of swing.

In this lesson, learners are challenged to discover the relationship among six numbers.