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Learners observe and conduct experiments demonstrating the different properties of hot and cold materials.

Learners see that a carrot slice sinks in fresh water and floats in saltwater.

In this introductory demonstration and activity, learners are introduced to the concept of density as they explore a rock and a wooden block in water.

Learners will see that changing the shape of an object, like a clay ball, that is more dense than water, can affect whether the object will sink or float.

This three-part activity consists of an activity that groups of learners develop themselves, a given procedure, and an optional demonstration.

This lesson focuses on molecular motion in gases. Learners compare the mass of a basketball when it is deflated and after it has been inflated.

In this activity, learners explore the process of condensation.

In this introductory activity and demonstration, learners are introduced to the concept that different substances react chemically in characteristic ways.

Learners investigate how the temperature of water affects its density.

Learners see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float.