Users read work instructions and view a drawing and calculations for turning on a lathe using a digital readout.

By the end of this learning activity, you’ll know how to understand, use, and maintain different types of fire extinguishers.

In this screencast, Geometric Dimensioning & Tolerancing: The Feature Control Frame, learners examine geometric characteristic symbols, tolerances, datum feature symbols, and other control frame information.

In this video, we’ll go over the necessary steps to square the toolhead on a Bridgeport mill.

In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.

Learners examine how metal detectors function. This object includes animation and sound.

Learners read about the concepts of true power, reactive power, and apparent power, and are introduced to the power factor formula. A short quiz completes the activity.

Students read about the concept of true power and view examples of how it is dissipated as heat is provided.

Learners read an explanation of the concept of apparent power in a power distribution system involving motors, generators, and transformers. A quiz completes this interactive lesson.

A game to test your knowledge of the elements of the periodic table

To help you understand the periodic table

A kids game about Chemicals and compounds