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There’s a lot of waste in how we make, use and dispose of clothes. CSIRO is looking for ideas to make fibre and materials more sustainable, and build a recycling, environmentally friendly, circular fibre industry.

Instead of biting with poison, boa constrictors wrap themselves around their prey and squeeze them to death. But if a boa constrictor’s squeeze can kill, how does the snake survive the pressure without suffocating themselves?

Oranges are delicious and packed with vitamin C. Their peel is also packed with a flashy, flammable chemical secret!

Difficulty: Extreme! These 2 brothers sold oranges for a living. On Monday: Josh priced his oranges at 2 for $3. He sold 30 oranges for $45. Zach priced his oranges at 3 for $4. He sold 30 oranges for $40. On Tuesday, they combined their prices, and sold their oranges in groups of (2 + […]

By Fiona Midson and Beth Askham This quiz is full of juicy facts! Can you keep your score sheet clean and get 5/5?

Rulers are great at measuring straight lines, but how do you measure a curvy line? Here’s one way, using a wonderfully messy diagram!

By Fiona Midson and Beth Askham Here is ‘acute’ quiz for you to size up! Answer these questions to see if you are in shape.

It might seem like a silly question to ask. After all, it depends on how big the rectangle is, and also the size of the squares you’re packing it with. With a big rectangle and small squares, you could fit a million, a billion or even more. But what if you have infinity squares? Is […]

Difficulty: Tricky Jasper had a regular (sides and angles all the same) hexagon with 10-centimetre sides, and 3 regular triangles with 10-centimetre sides. He put the side of a triangle against every second side of the hexagon. How many sides did this final shape have?

By Jacinta Bowler This image of the Argyre Planitia on Mars really is out of this world! Taken back in February 2021 by the ExoMars Trace Gas Orbiter, it shows Mars’ chaotic terrain of mounds, ripples and huge blue ‘dust devil’ tracks.