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

Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.

In the kitchen, learners can perform their own density investigation.

In this activity, learners measure the amount of carbon dioxide in a carbonated drink.

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 prepare four polymer elastomers and then compare their physical properties, such as texture, color, size, and bounce height.

As a group, learners investigate three packages which are all the same size and shape, but have different contents. One is filled with foam, one is filled with wood, and one is filled with metal.

In this activity, learners conduct an experiment to find out if steel wool will weigh more or less when it is burned. Learners will explore the effects of oxidation and rusting on the steel wool.

This activity was designed for blind learners, but all types of learners can participate to learn about conservation of gas. This is one of the classic experiments using baking soda and vinegar.

In this activity, learners use pegboard and straws to build a three-dimensional model of the periodic table.

In this chemistry activity, learners discover that the weight of the product of combustion is greater than that of the starting material.

Learners measure a bottle full of air, and then use a vacuum pump to remove the air. When they re-weigh the bottle, learners find the mass is about 0.8g less.

In this activity, learners balance chemical equations and discover the law of conservation of mass. Learners use coins to model molecules to balance the equations.