How are gases like liquids; how are they different? This clip demonstrates the state of matter called gas. We find out how the properties of gas are similar and different to the properties of liquid. An experimental demonstration and...

Charles' Law states that the temperature of a gas is directly proportional to the volume. Compressing a gas increases the heat, and giving it more space allows the molecules slow in speed and cool down. The narrator proves this concept...

In this video adapted from the National Science Center, students will observe a demonstration to discover how helium gas is inert and hydrogen gas is reactive. [2:17]

Watch this short video to learn how the ideal gas law is deducted and how to calculate the value of the constant R.

Paul Andersen explains how gases differ from the other phases of matter. An ideal gas is a model that allows scientists to predict the movement of gas under varying pressure, temperature and volume. A description of both the kinetic...

This video segment adapted from ZOOM offers a clever demonstration of buoyancy by showing how to pour a cup of air into a cup filled with water. [1 mim, 42 sec]