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

Learners turn over a random selection of cards from a larger set. From the words revealed, they try to determine the sentence represented on the larger set of cards.

Learners investigate a pre-constructed mystery tube to determine its interior mechanism.

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.

Learners explore the physical properties of a variety of balls and how they bounce.

Learners imagine they are paleontologists in Florida, where they find (remove from envelope) paper "fossils" of some unknown creature, only a few at a time.

In this multi-station lab, learners conduct a series of experiments to explore the processes and effects of weathering and erosion.