A spectroscope is a tool used by scientists to measure light by splitting it up into its colour components. Just like primary colours that we learn about in art - red, yellow and blue - light has its own primary colours - red, green and blue!

In this episode of GSC at Home, Harriet tells us more about spectroscopes and how they work, and shows us how to make our very own at home.

For this experiment you'll need: a cereal box, a ruler, a protractor, tin foil, sharp scissors, a blank/old CD, glue and black marker. Make sure you have an adults permission and supervision.

This experiment involves using sharp scissors, so please make sure an adult does this for you and always be careful handling scissors.

This experiment is suitable for ages 8 and over, with an adult doing any cutting out. Watch YouTube.