In this interactive review, learners complete a crossword puzzle containing content related to tobacco use.

In this animated and interactive object, learners examine a depiction of how force is multiplied by a larger cylinder when pressure from a pump is applied to a smaller cylinder. A short quiz completes the activity.

In this interactive and animated object, learners examine how dc voltages develop across capacitors that are connected in series and in parallel.

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

In this interactive object, learners read an introduction to Class 1, Class 2, and Class 3 levers and then take a quiz.

In this interactive object, learners examine a mind map of gender stratification. Quiz questions complete the activity.

In this interactive object, learners examine how voltages and currents vary in a parallel LC circuit as the applied frequency changes.

In this animated and interactive object, learners follow steps to perform the process identification procedure for the Ziegler-Nichols Continuous Cycling Tuning Method. A short quiz completes the activity.

Students locate the countries of the Middle East on a map in this interactive exercise.

In this interactive object, learners identify run-on sentences, comma splices, and sentence fragments.

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.

In this interactive object, learners read the definitions of terms associated with the construction of a grouped frequency distribution. A brief quiz completes the activity.

In this interactive object, learners read about the occupations that are most at risk for bloodborne pathogen exposure. They also read about the most common pathogens and how they are transmitted. This learning object is based on information from the U.S. Occupational Safety and Health Administration.

In this highly interactive object, learners associate basic line types and terms with engineering drawing geometry. A quiz completes the activity.

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

In this interactive object, learners review case studies and identify complex arterial blood gases.

In this interactive object, students view an animated depiction of Class 3 levers. A matching quiz completes the activity.

In this interactive object, learners work 10 problems covering resistors, voltage, and current.

In this interactive object, learners read about the differences between push and pull manufacturing systems. A brief quiz completes the activity.

In this interactive game, learners review emergency medications. For every right answer, the learner earns a square on the tic-tac-toe board while playing against the computer or another contestant.