In this learning activity you'll explore family structure then enter terms in a grid identifying if that family structure is determined by females, males, or both.

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

Students view an enlarged, colorful depiction of the contents of an average square inch of skin.

Learners identify the major components of an aircraft and the functions of these components.

In this activity, we will explain the mechanics of site structure and the role it plays in search engine optimization.

Students examine atomic structure and the octet rule.

Learners view the three zones of platelet structure, peripheral, structural, and organelle, and read about their functions.

In this interactive object, the learner identifies the kidney's internal and external structures.

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

In this animated object, learners examine the chemistry behind table salt.

In this animated object, learners examine the various connective tissue layers of the muscle organ. The terms "prime mover," "synergist," "antagonist," "origin," and "insertion" are defined.

Learners examine the functions of the three types of memory used by an Allen-Bradley SLC-500 programmable logic controller: the Executive ROM, Scratch Pad, and Processor File.

In this interactive and animated object, students distribute the valence electrons in simple covalent molecules with one central atom. Six rules are followed to show the bonding and nonbonding electrons in Lewis dot structures. The process is well illustrated with eight worked examples and two interactive practice problems.

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 animated object, learners examine the internal structure of an unloading valve. This learning object includes a video clip demonstrating the use of an unloading valve in a metal stamping application.

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

Learners read a general description of the function and structure of leaves and examine drawings and microscopic views. A matching exercise completes the learning object.

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

In this animated and interactive object, learners examine the location, structure, and function of the juxtaglomerular (JG) apparatus.