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The biggest ever prime number has just been found and it’s absolutely massive. It’s a number with more than 41 million digits. That means, if you were to type it out in size 12 font, it would be more than 8,000km long! That’s about the distance from Melbourne to Tokyo.

In this puzzle, each Aussie animal stands for a number. Each animal represents the same number throughout the puzzle. Can you use the first three mathematical equations to figure out the answer to the last equation?

Would you like to help satellites keep an eye on Australian water quality? This hands-on activity shows you how! Through the EyeOnWater app, you can help CSIRO scientists match satellite data to photos of the water in your neighbourhood!

Create oobleck, the amazing slime that can be both a liquid AND a solid!!

Describing a new species of shark happens occasionally but describing a whole new family of sharks is super rare! Yet CSIRO researchers Will White and Helen O’Neill, with other scientists, have recently done it.

Around and around we go with this interplanetary orbit quiz! Will you run ellipses ‘round these questions or will you find yourself tumbling back to Earth?

Houston, we have lift-off! This fun activity will turn your local stomping-grounds into a rocket launch facility.

Farmer Wallace packages his eggs in cartons that hold a dozen eggs. In March, he sells 5 standard orders of eggs to the local grocery store. Each standard order consists of 4 grosses of eggs. A gross is 144 eggs. How many cartons of eggs did Farmer Wallace sell?

Friends can help you out during difficult times. Plants can do the same for each other. In this activity, find out how growing different plants together can help defend against garden pests— chemical spray free!

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