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Imagine a swirl of milk in a cup of tea, or a drop of food colouring in a glass of water. The way liquids move and flow is intricate and almost impossibly complex. But that doesn’t stop scientists from trying to understand this movement.

Do you know how frogs breathe? We do! Test your knowledge in our latest quiz covering topics from plants and stars, to rocks and bytes.

Earth is active down to its very rocks. Earthquakes and volcanoes shake our planet, and the continents themselves drift lazily across the surface. Compared to Earth, the Moon is a cold, hard rock. But even lunar rocks are more active than you might think.

There are a few funny words in this week’s quiz. You’ll need to be on top of your sci-vocab if you want to score 5/5!

There’s a sailing theme to this fortnight’s quiz. See if you can navigate your way to a perfect score! If you’re after more fun science for kids, subscribe to Double Helix magazine!  

This quiz will take you from the number zero to 7.5 billion kilometres out in space! Can you answer this mixed batch of questions across science and maths? If you’re after more fun science for kids, subscribe to Double Helix magazine!  

Scientists love to name things. In this quiz you can discover all kinds of strange and wonderful names that scientists use in their jobs, and where those names come from.

When you think about it, whales seem a bit strange. They live in the ocean, but breathe air. That suggests that millions of years ago, their ancestors walked on land. But the change didn’t happen overnight.

From objects in free fall to the fall of the dinosaurs, we’ve got some tricky teasers for you today. Hope you don’t trip up!

There’s a lot to celebrate in Australian science. See how much you know with this set of antipodean questions.