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.
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.
Explore how a goldfinch interacts with its environment and how it's affected by environmental changes.
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.
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 video, you’ll explore the engine lathe, its basic components, and you’ll learn to operate its machine controls.
In this learning activity you'll explore Kirchhoff's Current Law and view examples of its application.
In this learning activity you'll describe inflation, its causes, and the negative consequences of it.
Students read a definition of Kirchhoff's Voltage Law and view examples of its use.
In this learning activity, you’ll be introduced to what the CRC is, the technology behind it, and how it’s performed.
Explore what DML is including its main commands INSERT, UPDATE, DELETE, and SELECT.
In this animated object, learners examine the operation of a hydraulic relief valve and its internal components. A brief quiz completes the activity.
In this animated object, learners study the operation of a ladder circuit that controls the rotational direction of a DC motor.
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.
Learners read an explanation of the debits and credits of accounting as they relate to T accounts and the accounting equation. Illustrated examples are provided.
The learner will understand the design of a planetary gear drive and its advantages and disadvantages.
In this learning activity, you’ll explore the Data Definition Language (DDL) including its three main commands: CREATE, ALTER, and DROP.
Explore what referential integrity is, why it's important to reliable data organization, and learn how it enforces constraints.