In this interactive module, students are introduced to the most fundamental part of chemistry: chemical reactions and the formulas that accompany them.

Through informational text, interactive practice problems, video clips, and real-world application, students are introduced to the science of Stoichiometry.

Includes exhaustive information and a wealth of activities pertaining to aerodynamics and the physics of flight.

This lesson focuses on chemical reactions including what they are and an explanation of each part of a chemical equation.

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.

For this experiment for Grade Five, students develop an understanding that chemical changes in matter do not affect the actual mass of the matter.

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.

Students learn the concept of angular momentum and its correlation to mass, velocity and radius. They experiment with rotation and an object's mass distribution. In an associated literacy activity, students use basic methods of...

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

Learn how to balance equations in this tutorial. Tutorial includes videos, interactive activities, and practices.