The student reviews definitions of it's/its and completes a practice exercise.

In this animated object, learners view hydrogen and hydroxide ions in a solution. A brief quiz on the basic principles of the term pH completes the activity.

Students read about South Africa and the countries that surround it. They test their knowledge in a map exercise.

In this video, you’ll explore the engine lathe, its basic components, and you’ll learn to operate its machine controls.

In this animated activity, learners examine how an adjustable pressure-reducing valve can produce a pressure that is lower at its output than at its input.

Explore how a goldfinch interacts with its environment and how it's affected by environmental changes.

Music Credit:

Title: Good Starts

Artist: Jingle Punks

Genre: Cinematic

Mood: Happy

Download: https://www.youtube.com/audiolibrary/...

In this animated activity, learners view the flip-flop and read about its outputs, the information it stores, and its storage conditions. A quiz completes the lesson.

In this learning activity you'll explore Kirchhoff's Current Law and view examples of its application.

The learner reads a brief explanation of how to use Mandarin Chinese monetary terms in formal and colloquial speech. The learner can then click on a term to listen to its pronunciation and see its value.

Learners study animation showing the operation of an AC wound-rotor motor with its external starting resistors. A short quiz completes the activity.

In this learning activity, you’ll explore the Data Definition Language (DDL) including its three main commands: CREATE, ALTER, and DROP.

Learners observe that the melting of a solid and the freezing of its liquid occur at the same temperature. The melting point is an intrinsic property and is used to identify a substance.

Explore what DML is including its main commands INSERT, UPDATE, DELETE, and SELECT.

Learners examine the operation of five pneumatic animated circuits that use directional control valves, pilot lines, check valves, needle valves, and cylinders.

In this animated object, learners observe the changes inside the DC shunt motor that could cause the motor to break apart when its field coil opens. A short quiz completes the activity.

In this animated and interactive object, learners examine why the voltage produced by an AC drive must be increased when its frequency is increased due to inductive reactance.

In this animated object, learners study the operation of a ladder circuit that controls the rotational direction of a DC motor.

Learners view an animation showing how the volume of a given quantity of gas varies directly with its temperature.

In this simulation activity, the lubrication fluid in a milling machine is tested, the condition of its 24 drill bits are inspected and identified before replacing those that are defective.

Students follow the steps for finding the total impedance for a series-parallel circuit. Several examples are given.