By David Shaw, 13 October 2021
Difficulty: Extreme! Terri runs a car showroom. It has 3 roads to park cars on, which all meet in the middle of the showroom. Terri can fit 3 cars on each road. If she tries to park a fourth, it blocks the intersection in the middle. At the moment, there are 2 Audis on one […]
Categories:
By David Shaw, 6 October 2021
Scientists measure all kinds of things, from plants to planets. And sometimes, they invent strange scales to measure things against – as you’ll discover in this quiz!
By David Shaw, 30 September 2021
Difficulty: Tricky Last week, there was an earthquake near Mount Buller in Victoria. The shaking reached central Melbourne around 9:16:30, and Canberra at 9:17:30. It’s 120 kilometres from the earthquake epicentre to central Melbourne, and 360 kilometres from the epicentre to Canberra. From the epicentre to Sydney, it’s 600 kilometres. What time did the shaking […]
By David Shaw, 13 September 2021
Difficulty: Extreme! The geology club was on its way to check out a fault line. As the minibus cruised down the highway, several club members realised they had forgotten their hats.
By David Shaw, 2 September 2021
Have you ever been to a football game? It’s exciting to cheer on your team in a stadium full of fans. But have you ever wondered if your cheers make a difference? With sports being played in empty stadiums during the COVID-19 pandemic, researchers have found that home advantage has disappeared along with the crowds.
By David Shaw, 26 August 2021
Difficulty: Tricky Kimya the giraffe can eat a bale of hay in 3 days. Little Azizi can eat a bale of hay in 6 days. If they both share a bale of hay, how long would it last?
By David Shaw, 19 August 2021
There’s a tonne of science in food. Here are 15 of our favourite food-related science activities to tickle your brain and tantalise your tastebuds!
By David Shaw, 18 August 2021
Difficulty: Tricky Kirk is designing a banner for an astronomy club. They want to put some stars on the banner, in straight lines.
By David Shaw, 5 August 2021
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.
By David Shaw, 14 July 2021
Difficulty: Tricky Ben is driving his train slowly. He realises he’s left an important package in the last car of the train. He needs to hop out of the train, walk all the way to the back to retrieve it, and then walk to the front of the train again.
12 months, 8 issues
Print & digital subscriptions available.
Sign up to our Double Helix newsletter
Stay in touch with new updates by signing up to our free newsletter
Perfect for ages 8 – 14
Developed by experienced editors
Engaging and motivating
*84% of readers are more interested in science
Engaging students voice