In this animated and interactive object, learners read about the parts of the eye. A short quiz completes the activity.

Students make observations and formulate an evaluation that includes diagnosis, microorganism identification, and treatment.

In this animated and interactive object, learners examine ventilation, external and internal respiration, and gas transport.

Learners categorize cardiac risk factors and match the signs and symptoms of cardiac distress with the correct terms.

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.

Digestive 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.

Female Reproductive System