What's new

Hands-on posts

Play Scopa Activity

by David, 17 May 2018 | 0 comments

Some playing cards

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!

Continue reading Play Scopa

Categories:

Make a cloud Activity

by David, 3 May 2018 | 0 comments

Photo of a glass jar with water in the bottom and a baloon stretched over the opening.

Create a cool cloud inside a jar using these instructions.

Continue reading Make a cloud

The language of the web Activity

by David, 19 April 2018 | 2 comments

Image of an open laptop screen and keyboard.

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.

Continue reading The language of the web

Categories:

String Tower Activity

by David, 5 April 2018 | 0 comments

A piece of string, knotted at regular intervals, being held srtaight by three plastic strips which attach to the knots in the string.

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

Continue reading String Tower

Balloon bus Activity

by David, 22 March 2018 | 2 comments

Photo of a man sitting on a bus holding a red balloon on a string.

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.

Continue reading Balloon bus

Want to launch a rocket? Competition

by David, 9 March 2018 | 17 comments

A rocket kit

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.

Continue reading Want to launch a rocket?

Categories:

Potpourri preservation Activity

by David, 8 March 2018 | 2 comments

A bowl filled with dried rose petals, orange peel and cinnamon sticks

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

Continue reading Potpourri preservation

Double Helix Extra: your new email update! Update

by Jas, 28 February 2018 | 0 comments

10 year old holding tablet and atomic model.

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!

Continue reading Double Helix Extra: your new email update!

Blood-splatter by numbers Activity

by David, 16 February 2018 | 1 comments

A blood spot with measurements for width and length

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…

Continue reading Blood-splatter by numbers

Categories:

Hanging by a thread Activity

by David, 27 November 2017 | 0 comments

a picture hanging from two pins

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

Continue reading Hanging by a thread

Categories: