In this animated activity, learners explore three major methods of heat transfer and practice identifying each.

Students identify the various regions of the human body through drag-and-drop exercises.

In this interactive learning activity, learners review the terms used to describe relative position of body parts in order to have a common set of words to describe their position.

In this video you'll study the structure of the cell membrane and construct it using the correct molecules.

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

In this animated object, learners examine neutral fats, phospholipids, and cholesterol. The molecular formula and general function for each are shown.

In this learning activity you'll review how every protein molecule of an organism is synthesized by that organism in a prescribed process. This activity helps students understand the fundamental life process of making protein.

In this interactive object, learners identify the parts of an animal cell and its organelles.

Learners read a brief introduction to monosaccharides, disaccharides, and polysaccharides. The processes for dehydration synthesis and hydrolysis are shown.

The learner listens to the pronunciation of medical terms using a "jukebox" to select the terms.

Learners study the process used to diagram sentences, and then work through numerous exercises to test their knowledge.

Learners examine the basic types of dimensioning including unidirectional and aligned systems, and linear, aligned, angled, arrowless, chain, datum, chart, tabular, radius, diameter, typical, and reference dimensions.