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#1. What’s the biggest native animal that lives in Australia?
Estuarine crocodiles (also known as saltwater crocodiles) can grow to 7 metres long, and can weigh more than one tonne!
#2. According to astronauts, space stinks. What does it smell of?
Some astronauts have likened the smells of space to walnuts and brake pads.
#3. What gas forms when you bake a cake, and helps make it rise to be light and fluffy?
Carbon dioxide is formed when baking soda (sodium bicarbonate) breaks down. It’s also produced by yeast in cinnamon rolls and other breads.
#4. Phantosmia affects your sense of smell, but what is it?
Phantosmia is the medical name for a smell hallucination.
#5. Which part of the eye holds the rods and cones that turn light into nerve signals?
The rods and cones that turn light into nerve signals are found in the retina on the back of the eye.
#6. In which year did Captain Charles “Chuck” Yeager become the first pilot to break the sound barrier?
Captain Charles “Chuck” Yeager of the United States Air Force broke the sound barrier on 14 October 1947 flying the Bell X-1 rocket-powered plane.
#7. Which Australian state now runs on 100% renewable energy?
In November 2020, Tasmania became the first state in Australia to reach their 100% renewable energy target. This state can generate all the power it needs from hydroelectricity and wind.
#8. Which of these planets is known for the beautiful rings around it?
Saturn is known for its rings made up of billions of small chunks of rock and ice, plus other materials such as dust.
#9. What is the closest star to our Sun?
Proxima Centauri is the closest star to our Sun.
#10. Which scientist won 2 Nobel Prize awards and was also the mother of a Nobel Prize winner?
Marie Curie won 2 Nobel Prizes and was also the mother of Irène Joliot-Curie who also won a Nobel Prize.
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