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

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

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.

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

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

In this animated and interactive object, learners identify the valves and chambers of the heart.

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

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

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

In this interactive object, learners review the major parts of the skeletal system by clicking on the correct term as each bone or joint is highlighted on a skeleton.

In this animated object, learners read an introduction to protein structure and function.