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Catalina won a game show prize! She spent 3/4 of it on a trip into space. She spent 2/3 of her remaining money climbing Mount Everest. Finally, she donated the last $100,000 to wildlife. How much did she win?

2024 is a leap year and February 29th is only a hop, skip and a jump away! So, it’s clearly time to celebrate with a leaps and bound-iful quiz. Don’t jump to conclusions and you’ll be sure to land a 5/5!

Palaeontologists have wondered for over a hundred years – how did dinosaurs evolve flight and become birds? To find the answer, researchers built a robot dinosaur!

Let’s make a mini greenhouse! This self-sustaining little ecosystem will look fantastic on your desk or in your bookshelf.

Australian farmers produce a whopping 6.2 billion eggs each year. Unfortunately, most of the resulting eggshells end up in landfill. Australian scientist Manickam Minakshi Sundaram hopes to change this with a breakthrough use for eggshells: batteries!

Artificial Intelligence (AI) can create incredible images just from short, text-based prompts. AI’s ability to create imaginative pictures is perfect for the fiction story in each issue of Double Helix. So, we are carefully using an AI called Midjourney to generate these illustrations.

Holly loves drawing and her favourite colours have been sharpened a lot. Her most favourite colour, rose, is exactly 3cm long. She discovers that the teal pencil is exactly 4cm, and the almond pencil is exactly 6cm. What lengths from 1-10 cm can Holly make with her pencils?

We’d really be in the dark without our only natural satellite, the Moon. Now lunar rove on over and moon rock this quiz! (As always, we make no Apollo-gees for puns.)

Extra! Extra! Read all about Double Helix Extra’s most eye-grabbing headlines from 2023:

What’s bold, bright, pink and could explore Mars? The Monash Nova Rover team designed the Waratah rover to spark innovation and conversations.