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Lava lamps look super cool, but they can be expensive and hard to find. With this activity, you can make your own bubbly lava and learn a bit about oil and water!

Find out more about invisibility by hiding a glass jar in plain sight. Then, use the jar to create a clever illusion, making a rock appear to float mysteriously!

Have you ever wanted to draw really small pictures? Here’s a trick – you can just draw normal sized ones, and then use some special plastic to shrink them!

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.

To celebrate the launch of Double Helix Extra, we’ve scoured the Double Helix prize cupboards and found some fantastic little rockets to give away. These Liquifly Fizz Rockets take vinegar and bicarb and turn them into motion! Simply measure in the fuel, and the rocket will fly more than five metres.

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