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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!

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

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!

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…

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?

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

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!

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

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.

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.