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Here’s a traditional card game that’s bound to get your brain pumping. Being able to add up will help, but there’s plenty more to puzzle over!

Create a cool cloud inside a jar using these instructions.

Have you ever wondered how a web page gets made? It involves using hypertext markup language, HTML. Read on to discover some of the secrets of HTML, then use it to make your own meme.

How do you make string stand on its end? To find out, read on…

When you’re on a bus, corners can push you sideways. But what does it do to a balloon? Grab a balloon and get on board to learn a thing or two about inertia.

Learn about the different parts of plants, as well as the science of preservation, by making your own pretty potpourri.

Double Helix magazine is excited to announce that we’re merging our newsletters Science by Email and Maths by Email, and adding a splash of technology and engineering news. Keep an eye out for our new look email, called Double Helix Extra!

Blood left at a crime scene can tell you a lot about the events. To rewind the clock and look back in time, you just need a ruler and some trigonometry. You will need Red food dye Chocolate topping (or corn syrup) Water Measuring cup Mixing bowl Spoon Drinking straw Old clothes A large sheet…

You’ll find yourself going a little loopy with this puzzle, but it’s worth unravelling the secret.

Psychologists often use simple games to determine how people make decisions when sharing and saving rewards, such as cash. In this case, we’ll explore the game of dictators using chocolate!