Assist your class with understanding collisions as they apply the Law of Conservation of Momentum. Pupils measure the momentum before and after manipulation of two objects so that one strikes another in an inelastic collision. The lesson...

Here's a resource ideal for independent learners who need extra reinforcement or would like to work ahead. These textbook chapters and practice problems cover many basic physics concepts, starting with potential and kinetic energy and...

This site from Wilkopedia defines the law of conservation of mass. Included are links to related topics and terms used in the definition.

From the Glenn Research Center at NASA, read about the law of conservation of energy. Included are formulas and many links to key terms.

This Homewood City Schools site has an outline form and contains lots of information about the classification and composition of matter. Some of the topics covered are matter and temperature, changes in state, composition of matter, and...

Explore the concept of matter in this Spanish-language encyclopedia entry. This site features the properties of matter, the Law of Conservation of Matter, and other important features of matter.

Find out about the essential role energy plays in cell function and in sustaining life. Trace energy transformations as they pass from one living thing to another.

Explains the Law of Conservation of Mass, or Law of Conservation of Matter, and gives two examples for it.

This is a glossary of the terms and definitions used in Chapter 8: Linear Momentum and Collisions from the AP Physics online text.