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Written by Elvina Lee What’s the festive season without bells? Here’s an activity you can do, without the headache of excess jingling!

If you’re sitting there twiddling your thumbs, see if you can decode this message. If you need a hint, you can always phone a friend! 3666882255533 443355544499 339987772

If you want to fly, you’ve got to move, right? Birds flap, propellers whirr, and if you’ve ever watched the spiral painted on the middle of a jet engine, you’ll know they spin too. But recently, researchers from Massachusetts Institute of Technology in the United States created a plane with no moving parts at all….

This time you’re up against our hardest quiz yet! If you get even one question right, we think you have fantastic science knowledge. If you answer all five questions correctly? You’re a quiz whiz. Let us know in the comments below! If you’re after more fun science for kids, subscribe to Double Helix magazine!  

Here’s a balancing game, but with a bit of practice you will always win! Why? Because you’ve set up a clever trick.

I have four different whole numbers written on a piece of paper. The largest number is four bigger than the smallest. The middle two numbers are even. If I add all four numbers together, I get 12. What are my numbers?

This quiz has two questions about tiny bloodsuckers that are bound to make your skin itch! But don’t stop there. Can you get all five questions right? If you’re after more fun science for kids, subscribe to Double Helix magazine!  

A walk in the Australian bush can occasionally reveal piles of strange, cube-shaped poo, carefully balanced on top of rocks. Although it might seem like a prank, they’re perfectly natural. Chances are, this cube poo has been ejected from a wombat’s rear end.

Do you get annoyed when you get a plastic straw with your drink? Instead of throwing it out, take it home and use it to make a musical instrument!

At half-past three, what is the angle between the hands of a clock? Scroll down for the answer!     Brainteaser answer First, a quick estimate. The short hand points across to the three, and the long hand points straight down to the 6. The angle is about 90 degrees, but there’s a more accurate…