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A flash and a bang! This quiz is all about electrical storms. Can you catch lightning in a bottle and get 5/5 this quiz?

Here are 5 fresh questions to juggle for this week’s quiz. Will you score high, or come crashing to Earth?

What’s the coldest thing in the universe? You may have heard of absolute zero, the coldest temperature possible. But a clever bit of mathematics has shown it might not be possible after all!

By Mike McRae This activity uses water and food colouring to explore fluid systems. It’s a good idea to do this activity in a safe place outside, and to wear old clothes while you do it!

Written by Matthew Dunn Illustrated by Alex Hallatt From absolute zero to the surface of the Sun, there’s a whole range of temperatures in our Universe. Let’s learn more!

Welcome to Double Helix magazine’s Q&A section – Microscope. We take a close look at small questions full of big ideas. Q: I want to know which is hotter, fire or lava? Or are they both the same?