Unit C: Electromagnetic Radiation

Learn about radio astronomy, a type of astronomy that studies objects in space using radio waves and radio telescopes.

Some astronomers are not looking for stars, planets or galaxies. They are searching for intelligent life in the universe beyond our planet.

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

Learn about radiography and x-rays as a form of medical imaging technology.

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

Learn about telescopes, how they work & why they're important to astronomers.

Ever wondered why we have two eyes (and not one, three or more)? Find how your two eyes work together in this hands-on activity.

Explore how we see things far and near and from different angles. It's all about perspective!

Find out what happens if you spin the colours of the rainbow in this hands-on activity.

Rainbows are beautiful examples of optics in nature. We see them thanks to the reflection and refraction of visible light and water.

Learn about the different types of radiation, how they interact with atoms and how they can affect you.

Could we use radio waves to charge electrical technologies in the future?

When astronomers search for extraterrestrial life, they often have to listen for radio waves coming from deep space. If you’re interested, you can help!

7 images of some objects that can reflect light such as mirrors, Mylar balloons and water

What does light have to do with colour? Observe some colourful fruit under different conditions to learn why we see the colours we see!