Cane toads, fire ants and blackberry bushes - read about the environmental and economic problems caused by invasive species and try a classroom activity to learn more.

Learn a bit about how your brain works in this activity from CSIRO's Double Helix Science Club which provides instructions for a couple of mind boggling tricks.

Hunt for invasive Portuguese millipedes in your local area and complete your own scientific research project, just like CSIRO entomologists.

This Double Helix Science Club activity provides instructions on how to make your own fossils from white glue. In this activity you'll learn about the science of fossil formation.

This activity from CSIRO's Double Helix Science Club provides instructions for making your very own DNA model. In the process, learn about the role of DNA and what it is made of.

In this game from CSIRO's Double Helix Science Club you play the role of an emperor penguin using tricky footwork to fight for its offspring's survival.

This activity from CSIRO's Double Helix Science Club provides instructions for extracting DNA in your own kitchen.

This web page from CSIRO's Double Helix Club provides instructions on how to do the Freezing Fingers activity. In this activity you will learn about insulation.

This activity from CSIRO's Double Helix Science Club provides instructions on how to create your own anatomical drawings. Before you know it you'll be drawing like the masters!

This activity from CSIRO's Double Helix Science Club provides instructions for an activity that investigates enzymes like those in your liver.