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Back in the time of the dinosaurs, Australia was just one small part of a much bigger continent. Can you piece together the ancient supercontinent, Gondwana?

Have you heard of continental drift? The ground under your very feet is moving! Here in Australia, we’re moving about 7 centimetres north every year. In a few million years, we could run into Southeast Asia. But what about the far future, 300 million years away?

Difficulty: Extreme! Nguyệt keeps a bread dough in her fridge. She tends to it so that every day it doubles in size, and then every morning, she cuts off enough dough to make one loaf of bread for her breakfast.

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?

In between Adelaide and Perth lies the Nullarbor, a vast, dry plain. It’s famously flat; the railway line goes dead straight for almost 500 kilometres before it needs to turn. But hidden in the saltbush, scientists saw a strangely circular hill. So where did this circle come from?

Difficulty: Fun On my bookshelf, my favourite book is the third from the left, and it’s the seventh from the right. How many books are there on that shelf?

We humans only have 2 legs, but a lot of creatures have many more. Do you have the legs to go the distance and get 5/5 on this quiz?

Folding origami cranes and paper aeroplanes is fun, but they tend to be made of straight lines. So what happens when you fold in curves?

Skewers are straight and pretty tough. But put just the right twist on them, and you can make something surprisingly curvy!

September is Biodiversity Month. Celebrate by taking this quiz about the variety of life you’ll find here on Earth. How biodiverse is your knowledge?