The materials used to produce skis have come a long way over the years. A short video explains how the materials in skis serve a specific purpose on the course. The lesson explores materials such as fiberglass and polymers.

Create a unit about types of interactions that your class will be attracted to! Delve into Next Generation Science Standard PS2B with a thought-provoking video. The narrator explains how to present interactions in elementary,...

How do you help your pupils understand the relationship between energy and forces? The video tackles standard PS3C using a concept map and demonstrations. The narrator also provides key vocabulary scholars should master at each grade level.

How can you keep track of all the forces acting on an object? Pupils learn how to use a free body diagram to represent the forces acting on an object. After explaining the different forces, the instructor leads viewers through a series...

Success in auto racing depends on the grip of a car's tires. Grip is the frictional force that holds the tires on the track. Aerodynamic features of a car also improve a car's grip. [5:02]

Tires on a car in a NASCAR race are filled with nitrogen. The force of friction increases tire pressure as the car goes around the track. Using dry nitrogen gas helps with predicting the temperature and pressure of a tire during a race....

Friction always creates heat. Brakes and tires depend on friction to work, while the opposite is true of an engine. Engine builders use oil and high-tech coatings to get more power from an engine. [5:25]