In this learning activity you'll explore a step-by-step process to solve simple free-body diagrams. They identify forces acting in the x or y direction in interactive exercises.

In this learning activity you'll review the facts and interpretations, determine a verdict, and respond to questions.

In this learning activity you'll review the facts and interpretations, determine a verdict, and respond to questions.

In this learning activity you'll examine the meaning of the term "freedom of religion" and answers questions about the First Amendment.

In this learning activity you'll review facts and interpretations, determines a verdict, and responds to questions.

In this learning activity you'll review facts and interpretations, determines a verdict, and responds to questions.

In this learning activity you'll review the facts and interpretations, determine a verdict, and respond to questions.

In this learning activity you'll create a free writing document on a topic.

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.

In this learning activity you'll read about efforts to prevent the government from interfering with citizens' rights to practice their religious beliefs.

Datum precedence is a fundamental principle in the design and manufacture of mechanical parts and assemblies.

It refers to the order of importance assigned to different datums, which are specific points, lines, or planes on a part, which are used as references for measurement and geometric tolerances.

The learner constructs a nail and identifies the terms relating to the structures of the nail in a matching exercise.

The learner examines various methods of testing antifreeze. This object has audio content.

This learning object explains new, free, and traditional ways to market your website.

Students match images of insects and other pests with their descriptions in this lesson on keeping a food service operation free from contamination.

Thousands of health and beauty products claim to be cruelty free - but do you know how to spot a fake? Test your knowledge and explore the exciting science that's delivering cutting-edge and better alternatives to animal testing in this interactive experience. Make decisions as both a beauty blogger and a research scientist as you navigate animal testing in the health and beauty industry.

Learners examine how melting, vaporization, and sublimation require energy input while freezing and condensation release energy.