Rates and Causes of Mortality in Classroom and Wild Monarch Larvae

Get young biologists' hearts pumping with this invigorating experiment on homeostasis. Working in small groups, one student performs jumping jacks for eight minutes while the other group members regularly record the person's vital signs,...

What is the relationship among the heart, circulation, and exercise? Your class members will explore first-hand how different physical exercises affect an individual's heart rate. They will begin by learning how to measure their own...

Through watching several classic air pressure demonstrations, middle schoolers determine that high pressure areas move toward lower pressure areas, heated air causes a drop in pressure, and forces exist when pressures are unequal. By...

Teach your exercise enthusiasts to read their pulse rate at the radial artery and multiply by four to calculate beats per minute. Learners perform a variety of activities, recording their heart rates after one minute of each. Though this...

Carbon dioxide makes up an incredibly small percentage of our atmosphere, so why is it so important? The video explains that humans passed the 400 parts per million mark in 2013. It highlights the causes of the increase and our...

Ever find yourself looking at a clear blue sky and notice something that seems to be floating across your eye? Well, you're not alone. Watch this short video to find out exactly what causes this and other common visual phenomenon.

There are ten times more bacteria cells than human cells in the average person, and while many of them are helpful, there are some that can be deadly. This video explores the on-going battle between people and these microscopic...

By watching this droll and delightful animation, physical scientists consider what happens when molecules collide. In this film, however, parodic people bump into each other, exchanging limbs in the process, just as molecules might trade...

Onions, garlic, and coffee can all have unfortunate effects on your breath, but what is the real cause of halitosis? Follow along with this video as it investigates how the bacteria that live in our mouths are responsible for these...

Scholars investigate levels of nitrogen dioxide in the Pacific Northwest by examining the role of nitrogen in air pollution and how remote sensing can be used to measure nitrogen levels. An Excel spreadsheet calculates the difference...