How Do Antiretroviral Drugs Work?

When an organism eats, how does food become energy? Young biologists follow glucose through the process of cellular respiration to the creation of ADP using a discussion-based activity. The resource also highlights conservation of mass...

Many hand sanitizers claim to kill 99.9 percent of bacteria—is that true? Learners explore how hand sanitizer actually works and how effective it is in an interesting video. They learn how hand sanitizer works to break apart the...

Tiny transistors have a big job to do in all of our electronic devices ... so, how do they work? Discover the chemistry and physics behind semiconductive elements such as silicon through an intriguing video from Veritasium's playlist....

Injection, taking a pill, or inhaling are the three main ways to administer a drug. But how do these drugs affect the brain? Watch a video that explains how neurons use neurotransmitters to communicate to one another in the brain.

Out of all vertebrates, the largest brain when compared to body size belongs to humans. Studying the working brain presents challenges to scientists. Learn about three of the most common tests used to understand how the living brain...

Find out what puts the motion in the ocean with a short video about how ocean currents work.  An animated video uses the story of little yellow ducky bathtub toys to show how currents flow through the world's oceans.

If humans can live without one kidney, how important can they really be? Investigate the vital role these organs play in filtering our blood, removing waste, and managing our bodies' water supply with this short animated video.

It seems like a simple process: we breathe in, our nose detects different scents, and our brain interprets the smell. But how does it actually work? How can something smell like vanilla to one person, but like urine to someone else? How...

Practically everyone experiences physical pain from time to time (although, believe it or not, some people don't). Often, people take a pill and then et it work its magic; learn exactly what that magic is through an engaging and...

With the thousands of tasks our brain consciously performs on a daily basis, it's amazing that breathing isn't one of them. Learn how human bodies are able to automatically control the exchange of gas that keeps us alive with this short...