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Learners observe and record what happens when they manipulate bottles containing a liquid (water or corn syrup) and one or more objects (screw, nail, paper clip).

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.

In this simulation of natural selection, learners use binder clips in three different sizes to represent the diversity of beak sizes in a bird population.

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