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Learners explore how the attractive forces between water molecules create surface tension and allow certain objects to float on the surface of water.

Learners explore water's property of cohesion through two investigations.

In this investigation learners explore the differences between, and interdependence of, living and nonliving elements in a water ecosystem.

In this investigation, learners explore the force known as buoyancy by placing various objects into water and observing how they behave (for example, which sink more quickly, which float, how much wat

Learners create a model of a wetland to observe how it absorbs and filters water from the environment.