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Difficulty: Fun Arafa was visiting a science centre to attend a chemistry workshop. She’d received a confirmation email that told her to head to the room number represented by a yellow flask. Can you help Arafa find the right room number?

This quiz is about things that are puffy, scruffy, and fluffy. Will you fluff the answers, or get a perfect score?

By Natalie Kikken Did you know that nails grow on a turtle’s flippers? At Ningaloo Reef, Western Australia, turtle nail clippings are providing new and exciting insights. CSIRO scientists can work out what turtles eat by analysing the chemicals in these nail samples.

Art and music are packed with amazing science and maths concepts. Explore these fuzzy boundaries in our latest quiz.

Here’s a quiz to sink your teeth into! How much do you know about crunchy science?

Written by Celia Berrell A small steel ball in a short smooth tube held in place by a spring, is the kind of switch that works in a twitch and starts an exploding thing.

Written by Kerry Dent Difficulty: Tricky On the expedition’s small BBQ, only two potato cakes will fit at the same time.

Is there a chemical element you love the most? To celebrate the International Year of the Periodic Table in 2019, Double Helix is running a poetry competition for school-aged students with support from the Royal Australian Chemical Institute (RACI). Meet our chemistry expert and competition judge, Michelle Neil!

Double Helix magazine is looking for your questions! Our Microscope column answers the most intriguing science, tech, engineering and maths queries you can throw at us.

Here are two egg experiments in one! Turn your eggs rubbery by dissolving their shells, and then make one grow and the other shrink with the power of salt water.