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A whole lot of holes – quick quiz Quiz

by David, 15 August 2018 | 0 comments

Black lightning bolt in purple circle

Wholly for your enjoyment, we’ve included several hole-related questions in this quiz. Don’t peek at the answers, or your victory might seem …. hollow!

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Making marshmallows Activity

by David, 14 August 2018 | 0 comments

Small plate of coconut covered marshmallows

Learn some fluffy and delicious chemistry by following this marshmallow recipe.

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Flying cups Activity

by David, 9 August 2018 | 1 comments

Someone streching a rubberband attached to a paper cup in readiness to launch the cup.

Do you like paper planes? Here’s a different glider to try, made from cups. You might be surprised at the path it takes when it flies!

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Broken calculator Brainteaser

by David, 8 August 2018 | 3 comments

Brain icon

Imagine your calculator is broken. Although it will still display numbers, only the 4 key, + key, = key and clear key work. Starting at 0, can you get the calculator to display 1000? What’s the fastest way, with the fewest button presses? Scroll down for the answer!     Brainteaser answer It’s definitely possible…

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How did the glider cross the road? News

by David, 2 August 2018 | 0 comments

Image of a glider on a branch.

Roads are dangerous places for our wildlife. So for many years, we’ve been helping animals out by adding ways to cross safely. There are tunnels and underpasses for wombats and other ground animals. For tree climbers, there are ropeways, strung high above the traffic. But how do gliders cross the road?

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As fast as the speed of light – a quick quiz Quiz

by David, 1 August 2018 | 1 comments

Black lightning bolt in purple circle

How fast can you answer this week’s questions? Put yourself to the test with another Double Helix quiz.

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Pulling pulleys Activity

by David, 26 July 2018 | 2 comments

Photo of a bobbin attached by a loop of string to a drink bottle, with another srting loop going upwards out of the shot.

Have you ever wondered how cranes can lift such heavy things? Their pulleys really help lighten the load. In this activity, have a play with some pulleys. These simple machines can make heavy weights as light as a feather!

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How old is my mum? Brainteaser

by David, 25 July 2018 | 0 comments

Brain icon

Twenty years ago, my mum was twice my age. I’m 42 years old. How old is my mum?

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Have your say and win! Competition

by Jasmine, 20 July 2018 | 0 comments

Image of a children's programming kit with the pieces lined infront of the box. the box reads "Rule your room kit"

We’d love to hear your thoughts about Double Helix magazine. We’ve come up with some questions to find out which parts of the magazine you love, and which parts we can improve.

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Why is CSIRO releasing mosquitoes? News

by David, 19 July 2018 | 4 comments

Image of two mosquitoes.

There are plenty of reasons to hate mosquitoes. They are annoying, hard to catch, and their bites can itch for days. But they’re not just irritating – in many places they spread diseases such as malaria, Zika and dengue.

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