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

In this activity, challenge learners to float a paper clip in a cup of water. Learners discover that a paper clip will sink in a cup of water, except when it is placed on a piece of paper towel.

In this activity about water's cohesive and adhesive properties and why water molecules are attracted to each other, learners test if objects repel or absorb water.

In this activity, challenge learners to predict and investigate how many water drops they can fit on one penny.

In this water activity, learners explore how water drops behave on different surfaces.

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

Water sticks to all kinds of things in nature — flowers, leaves, spider webs - and doesn't stick to others, such as a duck's back.