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In this activity, learners build models of atoms and molecules, then consider their role in different phases of matter, density, and mixtures and solutions.

Learners investigate how temperature affects the rate of chemical reactions by observing how steel wool reacts with various types of Kool-Aid solutions at different temperatures.

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 adhesion and learn about why water molecules are more strongly attracted to some substances than others.