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Totally metal – a quick quiz Quiz

by David, 17 June 2021 | 0 comments

Black lightning bolt in purple circle

Rock on! This quiz is all about metal. From octopus blood to bass guitars, you’ll need to be a metal master to get 5/5.

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Make a reed switch Activity

by Mike, 10 June 2021 | 0 comments

By Mike McRae and David Shaw Attracted to doing some hands-on science? Why not use a magnet to create a ‘reed switch’?

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How do ‘I am not a robot’ quizzes work? News

by David, 9 June 2021 | 2 comments

A computer screen saying 'I'm not a robot'

By Mike McRae Double Helix magazine is looking for your questions! Our Microscope column answers the most intriguing science, tech, engineering and maths queries you can throw at us. Comment down below with your question, or email us at Helix.Editor@csiro.au. The best questions will be published in our magazine! Here’s a sample question to get…

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Ooh! Shiny – a quick quiz Quiz

by David, 2 June 2021 | 0 comments

Black lightning bolt in purple circle

This quiz is all about shiny things. Will there be a glimmer in your eye as you get 5/5?

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How fast did T. rex walk? News

by David, 27 May 2021 | 0 comments

Skeleton of T-rex

Are you faster than a Tyrannosaurus rex? Scientists are still arguing about how fast a T. rex could run, if it could run at all. But most animals walk more than they run. So how fast is a tyrannosaur’s walking speed?

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Rivers – a quick quiz Quiz

by David, 19 May 2021 | 3 comments

Black lightning bolt in purple circle

This quiz is all about rivers. Let your knowledge flow and see how many questions you can get right!

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Magic colouring Activity

by David, 13 May 2021 | 1 comments

Drawing of a butterfly half emerged in water, the top half is coloured.

Here’s a great trick of the light that looks like magic. Put a picture into water, and the colour disappears! And the best thing is, the colour comes back when you take the picture out again.

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Storms clean the air News

by David, 12 May 2021 | 0 comments

Storm clouds rolling over the ocean.

After a rainstorm, doesn’t the world seem so clean? You might think of storms washing the earth – but they’re cleaning the air too!

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Metamorphosis – a quick quiz Quiz

by David, 5 May 2021 | 0 comments

Black lightning bolt in purple circle

This quiz is all about change! Can you get full marks first try, or will you need to change your answers?

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Small black hole found nearby News

by David, 29 April 2021 | 0 comments

Egg shaped star with black hole behind.

Black holes have such strong gravity that nothing, not even light can escape its clutches. We like to imagine that they are far away, like the supermassive black hole in the heart of our galaxy. But there may be black holes much closer to home. We’re just not very good at seeing them – after…

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