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.

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

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

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

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

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

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.

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.

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

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 screencast, 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 lesson on atomic structure, learners examine how the binding energy of electrons affects light production in certain phosphors used in x-rays.

In this learning activity you'll assemble the components of a prokaryotic cell and match the names and functions with each structure.

Learners examine the structure and function of skin including the production of melanin.

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