An interactive tool where students can explore how a spring behaves, and how changing the elasticity, mass, push/pull force, and friction affect its motion or period. As the spring moves, its motion is shown on a distance-time graph.

If you put on clothes that were washed in a washing machine, rode in a car, ate food from a fridge, warmed up lunch in a microwave, or played a video game, you used an electric motor. Try this science fair project and you'll learn how to...

By the end of this section, you will be able to do the following: Identify the difference between demand-pull inflation and cost-push inflation, Identify patterns of inflation for the United States using data from the Consumer Price...

Inflation is a general increase in prices of goods and services over time. Learn what causes it, how it is measured, and how you can protect yourself.