Students identify the various regions of the human body through video.

In this learning activity you'll explore the difference between mass and weight.

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 structure and function of the different tissues of the human body.

In this learning activity you'll observe information and formulate an evaluation that includes diagnosis and microorganism identification.

In this learning activity you'll review information on the neural synapse.

In this learning activity you'll explore the food pyramid and the recommended services.

In this learning activity you'll assembles parts of a virus and match virus terms and descriptions.

In this animated object, learners trace the olfactory pathway from the nasal cavity to the olfactory cortex.

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

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

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

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.

In this animated object, learners examine the formation of ester bonds in the synthesis of lipids using triglyceride biosynthesis as an example. Ester bond formation is described as a dehydration synthesis reaction.

In this animated object, learners read a brief description of the roles of the hypothalamus, emotions, and adrenal secretions during the stress response.

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 interactive object, the learner practices identifying charges on ions.

In this interactive and animated object, learners read a description of the number, name, and function of the cranial nerves. A matching quiz completes the activity.

In this animated object, learners examine synthesis, decomposition, exchange, and reversible reactions.

In this animated object, learners examine the different phases of a cell's life.

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

In this animated object, students observe how ATP energy is used to move substances across the cell membrane from an area of lower concentration to an area of higher concentration and when something too large needs to get in or out of a cell.

In this animated activity, learners examine muscle cell contraction and relaxation and consider the role of calcium ions.

In this animated object, learners examine processes that do not use ATP directly including hydrostatic pressure and facilitated diffusion with carrier proteins.

In this animated object, learners compare the mode of action of steroids with the action of amino acid-based hormones.