Students examine buoyancy.  In this density lesson students form a hypothesis, collect data and draw a conclusion using the data. 

Students observe and classify objects that float or sink.

Pupils participate in an experiment to determine which objects float or sink. They use different amounts of salt for the objects and discover as the salt content increases, objects will float. They record their predictions and what...

This lesson plan is designed to have young children explore the concept of sinking vs. floating by using the skills of prediction, observation and classification.