Start the new decade with a challenge! This megaquiz will test your knowledge of all the quizzes we wrote in 2018. The questions are randomly selected, so if you want more questions, you can just reload the page. Or head back to our 2019 megaquiz!
Results
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#1. How long is the equator?
Earth’s equator is about 40 075 kilometres long.
#2. Typically, how much salt is there in one litre of sea water?
Sea water is about 3.5% salt, and a litre of sea water is a little more than a kilogram, so there’s about 35 grams of salt in a litre of sea water.
#3. Biceps can be found in arms, but where would you find triceps?
Triceps muscles are on the back of arms, opposite the biceps.
#4. What is the heaviest moon in the solar system?
Ganymede weighs about twice as much as Earth’s Moon.
#5. What is the biggest number that can be written in one byte of data?
One byte is eight ones or zeroes. It can store any whole number from 0 to 255.
#6. Scientists just measured a new fastest ant: the Saharan silver ant. How fast can it run?
The Saharan silver ant, with the scientific name Cataglyphis bombycine, can run at 855 millimetres per second. That’s about three kilometres per hour!
#7. What is collected by The Dish at Parkes?
The Dish is the Parkes radio telescope.
#8. Where would you find the moon Phobos?
Phobos is the larger of Mars’ two moons.
#9. If an animal is communicating using stridulation, what is it doing?
Stridulation describes how animals make sounds to communicate by rubbing body parts together.
#10. Diamonds are usually formed when coal is subjected to extreme heat and pressure.
False. Most diamonds are thought to have been made in the Earth’s mantle, and then brought to the surface during volcanic eruptions.
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