Students read about the process of hair growth beginning with the joining together of amino acids.

In this interactive object, learners read the definitions of the parts of a cell and assemble a basic eukaryotic cell in a drag and drop exercise. A matching quiz involving cell terms and their definitions completes the activity.

In this well-illustrated object, learners examine the structures and properties of the four types of solids: molecular, metallic, ionic, and covalent network. Five interactive questions are provided.

Learners read about the mutations that occurred in plants for the successful transition from an aquatic to a terrestrial existence. The classification of plants is based on these adaptive structures.

In this learning activity you'll analyzes the structures and processes of religion within a global context.

In this screencast, you'll review definitions of To, Too, and Two and review practice sentences.

In this learning activity you'll analyze the structures of Buddhism and identifies the countries with the largest Buddhist populations.

In this screencast, learners examine hearing and balance. Detailed drawings of the outer, middle, and inner ear structures are included.

In this animated and interactive object, learners examine the structure and functions of granulocytes and agranulocytes. Two exercises complete the activity.

Learners view an animation of a sequence valve in operation and examine the valve’s internal structure.

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

In this colorful and interactive object, learners examine the structure and function of muscle and connective tissues. A quiz completes the activity.

Learners examine the location, structure, and function of the unipolar and multipolar neurons.

In this interactive object, learners examine the structure and function of the sense of taste.

In this animated object, learners examine the structure and function of intracellular and extracellular fluid. They also read about the most common electrolytes in the body and complete a matching exercise to test their knowledge.

Student learn to use proper subject - verb agreement.

Explore what proteins are, their structure, and their functions.

In this animated activity, learners examine nanotechnology applications that are based on cell membrane structure and function.

Learners choose the meaning of a selected word in a sentence.

Learners view an animation of a counterbalance valve in operation and examine the valve’s internal structure.