Learners examine the anatomical parts of the lungs.
By Kristine Snow, Judy North
The student categorizes defense mechanisms as specific or non-specific.
Tobacco Crossword Puzzle
By Patty Wisneski
In this interactive review, learners complete a crossword puzzle containing content related to tobacco use.
The Upper and Lower Motor Neurons
By Barbara Liang
In this animated object, learners examine the function and location of the motor neurons and the damage that can result when they are injured.
Respiratory System Gas Exchange
By Bruce Forciea
In this animated object, learners examine the mechanisms for gas exchange among the lungs, blood, and tissues.
How to Convert from One Unit to Another in the Metric System
By Nabila Dahche
In this learning activity you'll practice converting from one metric unit to another.
The Edison Wire System
By Terry Bartelt
Learners read a description of the wiring configuration of a residential Edison Wire System, which consists of a transformer secondary circuit. The circuit supplies two 115-volt sources and one 230-volt source.
The Neutral Current of an Edison Wire System
Learners take a close look at the Edison Wire System and observe how the current values through the two lines and the neutral of the system change as the loads vary.
Voltage Waveforms in an Edison Three-Wire System
Learners view the waveforms and voltages of an Edison Three-Wire System and read a description of the polarities across the secondary of the center-tap transformer. This transformer supplies power to residential homes.
An Overview of Pulmonary and Systemic Circulation
By Wendy Dusek
In this animated and interactive object, learners examine how blood flows through the heart and lungs. A brief quiz completes the activity.
Asbestos Exposure and Risks
Asbestos is an infamous public health menace. Find out what it is and the health risks such as lung cancer, mesothelioma and asbestosis.
You'll learn about respiration and blood flow. Can you answer these questions?
Creative Commons Attribution-NonCommercial 4.0 International License.
Learn more about the license »
Give your new group a name.