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

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.

In this activity, learners explore the process of condensation.

In this health activity (on page 3 of the PDF), learners will learn about the body‘s defenses against invasion from tiny particles.