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See if you have a wealth of knowledge about money in this quiz about polymer banknotes. Hopefully you can hit the jackpot with a 5/5! If you need a hint, grab a banknote and investigate for yourself.

Sienna’s teacher is writing up a wicked problem. First, the teacher writes all the numbers from 1 to 99 and then erases 10, 20, and all the other numbers that end in 0. “Listen up! Multiply all these numbers. Tell me the last digit and I’ll give you full marks on your next assignment.”

In Australia, lots of people are calling for help every day. However, there are lots of issues with the way we call for help, from how information is shared with First Responders to the accessibility of the service overall. My project tried to fix some of these issues and make Australia’s Triple Zero system better.

Have you ever heard of pear-shaped eggs? These ‘pyriform’ eggs are so fascinating because they have a unique shape different from the usual oval shape, due to adaptation. Having one of the most pronounced pear-shaped eggs, guillemot seabirds lay eggs on sheer cliffs where strong winds can blow them away, but the special shape of their eggs may hold some secret uses.

Have you ever wondered why the sky is blue in the morning, and then orange in the evening? Incredibly, milk can show us why!

Look out! This quiz is meant to shake you up… unless of course you can rise like a tsunami and score a 5/5.

Bathymetry is the study of the ocean floor. And it creates a lot of maps! These maps record the changing depths of the ocean and are often beautiful to look at. Why not make your own?

For 120 years, the SS Nemesis lay in an unknown location at the bottom of the ocean. In 1904, the 73-metre steamship disappeared in a storm with the tragic loss of 32 lives onboard. No one knew where SS Nemesis was until modern technology shone light – and sound – on the shipwreck.

Flora likes to run up stairs as fast as she can! Sometimes she lands on every stair and sometimes she skips a stair, taking two in one stride. This gets her thinking: how many different ways can she run up a staircase?

Around and around we go with this interplanetary orbit quiz! Will you run ellipses ‘round these questions or will you find yourself tumbling back to Earth?