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 many stars are there in the Alpha Centauri system?
Alpha Centauri has two sun-like stars called Rigil Kentaurus and Toliman, and one red dwarf called Proxima Centauri.
#2. What is Earth’s inner core made from?
Based on information such as seismic wave and magnetic field data, it’s believed that Earth’s inner core is mostly iron, a bit of nickel, and tiny amounts of other elements.
#3. How many gigabytes are there in a petabyte?
There are 1000 gigabytes in a terabyte, and 1000 terabytes in a petabyte.
#4. Only one of the following metals is on the periodic table, but which one?
Zinc is element number 30 and has the symbol Zn. The other metals include more than one element.
#5. What colour is the copper ore called malachite?
Malachite is a beautiful green mineral that is sometimes used for jewellery.
#6. What is the average number of tastebuds on an adult’s tongue?
5000. Adults commonly have between 2000 and 8000 tastebuds on their tongue.
#7. What is the planet Jupiter named after?
Jupiter was the Ancient Roman god of thunder and the sky, and the father of all other Roman gods.
#8. What types of clouds are associated with storms?
Cumulonimbus clouds are a good sign that a storm is on the way.
#9. 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!
#10. 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.
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