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Here’s a quick sliding puzzle to get your brain pumping. See if you can separate the light and dark counters in as few moves as possible!

This month, CSIRO released its latest collection of favourite hands-on activities for kids. The Double Helix editorial team explains the thinking, splashes, scares and surprises they encountered while testing their new book: More Hands-On Science.

In this sample from More Hands-on Science, we’re looking at infinitely detailed shapes known as fractals. If you do this activity, you can discover a fractal called the dragon curve!

What happens when you cover an egg in soot? It gets super black, but also super shiny!

Craft yourself a mathematical ring to learn about straight lines on donuts. Don’t laugh, they do exist!

Here’s a fun way to keep your food fresh! Make your own food wraps, and reduce the amount of plastic wrap you use. Safety: This activity uses a hot iron to melt wax. Ask an adult for assistance.

Your eyes can see colour and brightness, but there’s one more thing they can detect. With the right technique, many people can tell if light is polarised – no glasses needed!

The best way to do maths is to have fun! Here’s a selection of our favourite games and puzzles.

By Beth Askham and David Shaw Did you know that electricity and magnetism are closely related phenomena? In this activity, you’ll create a magnetic field using electricity and find that this can cause chaos for a compass!

Did you know you can control the speed of a splash? Time to make some speedy waves, before using a neat trick to slow them down.