Waves

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

What is the difference between sound and noise? How do they affect your hearing? And is noise always a bad thing?

Using stethoscopes, doctors can use sound waves to detect various health issues. Learn how this device has evolved since it was invented in 1816!

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!

Try out this cool activity to hear sound vibrations.

Explore how we see things through water.

How does the human eye see visible light as colour? And why do some people see more colours than others?