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There’s an awful lot going on inside a battery, and it relies on chemicals moving around and reacting. Now, Queensland scientists have created a new way to help these moving chemicals get where they need to go. And it’s based on a fast-growing plant – bamboo!

We’ve had to dig deep to bring you this quiz. Can you unearth all the right answers?

I’m Jasmine Fellows, Editor of CSIRO’s Double Helix magazine. As a girl, I’d often be found with my nose stuck in a book, comic, or magazine. I even read the earliest versions of our magazine, Double Helix News and The Helix.

By Carrol Baker Chocolate is smooth and creamy, comes in many different shapes and flavour combinations, and is a much-loved treat. So, what is it about chocolate that can send your taste buds into orbit? The secret is chemistry!

This year’s National Science Week theme is ‘Food: Different by Design’. So let’s celebrate with some edible marshmallow slime! Safety: When handling food, use clean hands and clean equipment. Items from the microwave can be hot – ask an adult to help.

Difficulty: Fun Alex has a square of paper, but it’s a bit too big. To make it smaller, they found the middle of each side, and then ruled lines between them. Then they cut off the four corners along the lines, leaving a square in the middle.

If you dug a hole straight down, what would you find? Earth isn’t just solid rock all the way through. There’s a thin rocky crust floating on the slowly flowing mantle, a liquid outer core and solid metal inner core. It turns out that Mars has a similar internal structure to Earth.

Blast into orbit with this well-rounded quiz. Will you crash back to Earth, or reach the stars?

This simple toy is made from a few paperclips and can jump high into the air. Time to get bending!

This quiz is all about growth! Can you grow your knowledge and get the high score?