In this interactive object, learners identify a variety of prevention activities as primary, secondary, or tertiary.

In this interactive object, learners review respiratory system terminology and then match the terms with their definitions in a drag-and-drop exercise.

In this highly interactive and animated object, learners complete three exercises to identify the cranial nerves and their functions.

In this highly animated and colorful object, learners examine the steps of carbohydrate digestion. A brief quiz completes the activity.

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

In this learning activity you'll examine how computers operate in a peer-to-peer network operating system.

Learners use this interactive and animated object to examine the use of binary numbers in a programmable logic controller. A brief quiz completes the activity.

Learners examine the occurrence of overflow and underflow conditions in a programmable logic controller. It is recommended that users view the learning object “Signed Binary Numbers” in advance of this object.

Learners study an animated block diagram that describes the function of each element in a closed-loop system used in industrial automation.

Female Reproductive System

Uranus [yoor-uh-nuh s] is the seventh planet from the Sun. It’s barely visible to the naked eye, and is the first planet discovered with the use of a telescope.

a game to test your knowledge on the human digestive system