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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 shape has a little secret. It’s known as a chamfered cube, and it’s not as perfect as it first seems…

Gerri has two identical square tarpaulins. Unfortunately, these tarps aren’t quite big enough to cover the brand new spa bath. So Gerri’s decided to cut the tarps and tape them together to make a bigger tarp. They want their final tarp to be a square, and they want it to be as big as possible.

There’s a lot we don’t know about the tooth fairy. We don’t know what they look like, or how they get around, or even what they do with all the teeth they gather. But researchers around the world have been keeping tabs on the finances of this elusive tooth collector.

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!  

Running an election is a good way to let everyone have a say. In this example, we will be voting for the tastiest vegetable, but if you design your own ballot papers, you can use this method to run an election about anything!

Emily has twice as many brothers as she has sisters. Her brother Bill has one more sister than he has brothers. How many boys and girls are in Emily and Bill’s family?

Plenty of owners will tell you their cats are smart, compassionate and wonderful creatures. Scientists are curious about whether this is actually the case. Until this year, scientists weren’t even sure if cats knew their own names.

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.

I’m thinking of a two digit number. If you add the digits together and then multiply by three, you get the number back again! What number am I thinking of?