The Material World

Learn about static electricity and where we encounter it in daily life.

Particle accelerators have amazing applications - from growing food to making airplanes safe.

To count tiny things like atoms and molecules, scientists use a measurement called the mole.

This week's episodes and hands-on activity explore some cool chemistry!

Learn about uses of thermal imaging as a medical imaging technology.

Learn about the history, function, uses, benefits and risks of Magnetic Resonance Imaging (MRI) as a medical imaging technology.

This backgrounder explains the potential effects of radiation on the human body.

Carbon dioxide is an important part of the air on Earth and in space. What is carbon dioxide? How is it measured? How can it affect us mentally and physically?

Has your fresh juicy apple turned an unsightly brown? Learn about the redox reaction behind the transformation.

Acid rain is any precipitation that has an unusually low pH. It can be rain, snow, fog, etc. But what is a low pH and why is this a problem?

When thunder and lightning occur but the main form of precipitation is snow, not rain, it’s called thundersnow.

What are your teeth made up of? What chemistry is at work in your mouth? Why do some people get cavities even if they brush regularly?