What's new

Hands-on posts

Unchecker the board Activity

by David, 22 October 2020 | 0 comments

Someone is sliding a black counter on a grid

Here’s a quick sliding puzzle to get your brain pumping. See if you can separate the light and dark counters in as few moves as possible!

Continue reading Unchecker the board

Categories:

Sugar snake Activity

by David, 16 October 2020 | 0 comments

Ash and flames in a foil tray.

Here’s a fun little firework you can make at home. A couple of simple household chemicals grow into a gigantic black snake!

Continue reading Sugar snake

Making More Hands-On Science Update

by David, 15 October 2020 | 0 comments

This month, CSIRO released its latest collection of favourite hands-on activities for kids. The Double Helix editorial team explains the thinking, splashes, scares and surprises they encountered while testing their new book: More Hands-On Science.

Continue reading Making More Hands-On Science

Categories:

Dragon curves Activity

by David, 1 October 2020 | 0 comments

Strip of paper folded at regular intervals making a pattern

In this sample from More Hands-on Science, we’re looking at infinitely detailed shapes known as fractals. If you do this activity, you can discover a fractal called the dragon curve!

Continue reading Dragon curves

Categories:

Shiny egg Activity

by David, 10 September 2020 | 2 comments

Photo of a soot covered egg in a glass of water.

What happens when you cover an egg in soot? It gets super black, but also super shiny!

Continue reading Shiny egg

Geodesic rings Activity

by David, 20 August 2020 | 0 comments

A child's hand ontop of a larger hand, both hands are wearing colourful rings

Craft yourself a mathematical ring to learn about straight lines on donuts. Don’t laugh, they do exist!

Continue reading Geodesic rings

Categories:

Beeswax food wraps Activity

by David, 6 August 2020 | 1 comments

Sandwich wrapped in a wax cloth wrap.

Here’s a fun way to keep your food fresh! Make your own food wraps, and reduce the amount of plastic wrap you use. Safety: This activity uses a hot iron to melt wax. Ask an adult for assistance.

Continue reading Beeswax food wraps

The hidden sense in your eyes Activity

by David, 23 July 2020 | 0 comments

Image of two vertical blue balls and two horizontal yellow balls on a computer screen.

Your eyes can see colour and brightness, but there’s one more thing they can detect. With the right technique, many people can tell if light is polarised – no glasses needed!

Continue reading The hidden sense in your eyes

15 maths games and puzzles to keep your brain pumping Activity

by David, 16 July 2020 | 0 comments

Hexagonal board game with chess pieces on it.

The best way to do maths is to have fun! Here’s a selection of our favourite games and puzzles.

Continue reading 15 maths games and puzzles to keep your brain pumping

Categories:

Confuse a compass with electricity Activity

by David, 9 July 2020 | 0 comments

Image of a compass on a piece of wire.

By Beth Askham and David Shaw Did you know that electricity and magnetism are closely related phenomena? In this activity, you’ll create a magnetic field using electricity and find that this can cause chaos for a compass!

Continue reading Confuse a compass with electricity