Blog

In 2023, Double Helix readers busted a bunch of brainteasers! Here are the tippy-top, most popular puzzles of the year.

What a year of activity! In 2023, we posted 25 hands-on STEM activities. Here are 5 of the most popular posts.

Can you find a different set of 5 positive whole numbers with the same stats?

Marsupials! Australia is famous for these incredible animals, and we believe you are fully koala-fied to have this quiz in the bag, er, pouch.

Bee-come a bee hero and create crucial habitat for your local native bees. Your garden will be all abuzz!

Here’s a fun paper toy that can help you pick a future job. Have a go with our STEM career chatterbox! There are no wrong answers, only positive role models.

The Great Barrier Reef is one of Earth’s 7 natural wonders. We’re wondering if you’ll be a natural at this quiz! Wade into the Reef’s fantastic ecology and aim for a dive out of five.

Difficulty: Fun Ellen has a set of 6 weights that come in pairs. One pair is a magical set of negative weights (think helium balloons that take weight away). 2 of the weights are 1 kilogram each, 2 of the weights are 5 kilograms each, and the 2 magical weights are -3 kilograms each. Ellen […]

Difficulty: Fun Triangular numbers are numbers that can be formed into a triangle. For example, 3 is a triangular number with 2 dots on the bottom row and 1 dot on top row forming an equilateral triangle of 3 dots. 6 is the next triangular number with 3 dots on the bottom, 2 dots in […]

We promise to tell no tall tales, but this science quiz will have you sitting up straighter. Can you reach the 5/5 mark?