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In this activity, learners work in groups to determine the mass and volume of four samples: glass marbles, steel washers or nuts, pieces of pine wood, and pieces of PVC pipe.

In this math lesson, learners analyze the density of liquids in order to explore linear functions.

In this two-part activity, learners investigate buoyancy, density and surface area as well as biodiversity and the relationship between the structure and function of organisms.

In this activity, learners are introduced to challenges of maintaining temperatures while living in space.

In this activity, learners explore the concept of density-driven currents (thermohaline circulation) and how these currents are affected by climate change.