In this interactive object, learners solve additional problems involving total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.

In this interactive object, learners examine how hydraulic oil is contaminated, the types of damage contamination can cause, and the methods used to clean the oil.

In this colorful, interactive object, learners examine how materials on the nanoscale compare with those on the macroscale. The focus is on the difference between macroscale and nanoscale gold in both color and melting point.

In this interactive object, learners assign water supply fixture units to a water distribution system using Section 82.40 of the Wisconsin Plumbing Code.

In this interactive object, learners review descriptions of various blood collection tube additives. They then test their knowledge by matching the different tubes to their corresponding additives.

The student reads about encoding, storage, and retrieval and test his or her memory in an interactive exercise.

In this animated and interactive object, learners view two examples of how to subtract fractions with unlike denominators and then work five similar problems.

Learners view several movie clips that demonstrate the use of an indicator to follow the neutralization reaction that occurs when an acid and a base are mixed. Students test their knowledge in a series of questions. Immediate feedback is given.

Learners assess the periodontal status and the health risk factors of a fictitious patient. They also make treatment recommendations in this interactive lesson.

In this interactive object, learners match the bacterial etiologic agent to the disease it causes.

In this interactive and animated object, learners apply the Law of Sines to determine forces using a TI-86 calculator.

In this interactive learning object, students read about the voltage and current parameters commonly found on a data sheet. A brief quiz completes the activity.

This interactive learning object demonstrates how the moisture content is determined for a given sample of soil or aggregate.

In this interactive object, students view an animated depiction of Class 1 levers. A matching quiz completes the activity.

In this interactive object, learners read an explanation of the electrodes used for welding with the GMAW and FCAW processes. In two matching exercises, students test their knowledge of classification and specification numbers.

Learners study animated rheostat settings that show how varying the current flow affects the amount of power that is dissipated in a series circuit. Nine review questions complete the activity.

In this learning activity you'll practice writing the correct verb form in this interactive exercise.

In this interactive object, the learner views photos of the interior of a salon and identifies areas that violate Wisconsin safety and sanitation regulations.

Students read descriptions of the voltage, current, and turns ratios of the primary and secondary coils for a transformer in this interactive lesson.

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