This activity will review determining geometric tolerances for a part.

In this learning activity, you’ll explore four different types of JOINs and understand how they help programmers produce readable reports.

In this interactive and animated object, students distribute the valence electrons in simple covalent molecules with one central atom. Six rules are followed to show the bonding and nonbonding electrons in Lewis dot structures. The process is well illustrated with eight worked examples and two interactive practice problems.

In this learning activity you'll analyze the basic steps in conjugation and applies the effect to microbial characteristics.

In this learning activity you'll review the safety equipment used to protect a worker's face and ears.

In this learning activity you'll review the hazardous materials safety document which display an example of a SDS or MSDS (Material Safety Data Sheet).

In this learning activity you'll review the information and images on lockout and tagout procedures.

In this learning activity you'll review how to read a metric micrometer and use your knowledge to answer 12 questions.

In this learning activity you'll review a visual overview of depth measurement using the depth micrometer.

In this learning activity you'll review steel rule measurement.

In this learning activity you'll review a visual overview of inside measurement.

In this interactive and animated object, learners examine orthographic projection and the Glass Box Theory. Front, side, and top view development is demonstrated with pictorial views of each object to help develop 2D to 3D visualization skills.

Learners examine the speed control circuits in a DC variable speed drive that cause the RPM of a motor to vary. This activity has audio content.

In this animated activity, learners examine the firing circuits in a DC variable speed drive. The circuits cause the current flow through the armature and rpm to vary. This activity has audio content.

In this animated activity, learners examine the circuitry in a DC variable speed drive that keeps the motor running at a constant speed as the load varies.

In this animated activity, learners examine the circuitry in a DC variable speed drive that causes the motor to accelerate or decelerate at slow rates. This learning object has audio content.

In this animated object, learners examine water molecules moving through a semipermeable membrane.

In this animated activity, learners examine the two major phases of cell division: mitosis and cytokinesis.

In this learning activity you'll examine force, mass, and acceleration to understand this "Law of Acceleration."

In this learning activity, you'll watch an animated explanation of the terms class and object as used by computer programmers, and then contrast the differences.