Get into 2019 with this brain work out! 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!


Congratulations! you are a real science whiz!

Oh dear! Maybe you should reload the page and try a new quiz!

#1. Which of the following animals dives deepest?

Cuvier’s beaked whales can dive almost three kilometres below the surface of the ocean.

#2. Which of these diseases is not spread by mosquitoes?

Measles is an airborne disease, spread by coughing and sneezing. It’s not spread by any other animal species.

#3. If you were on Earth 350 million years ago, how many days were in a year then?

Earth used to spin faster than it does now. That means there were more rotations in a year, which means more days in a year!

#4. Portland cement is typically made from which rock?

Portland cement is typically made by roasting limestone, with a small amount of other ingredients, such as gypsum or clay.

#5. Octane is a chemical often found in petrol. How many oxygen atoms are there in each molecule of octane?

There is no oxygen in octane! An octane molecule is made of eight carbon atoms and 18 hydrogen atoms.

#6. If an animal is melanistic, what’s special about it?

A melanistic animal has a lot of the dark pigment melanin, which makes it appear black or darkly coloured.

#7. What do you call the branching ridges on the underside of many leaves?

The veins of a leaf help to transport water and nutrients, and they can also help keep a leaf strong.

#8. What is the largest confirmed crater in the Solar System?

The Utopia basin is about 3300 kilometres wide, making it about half as wide as Mars itself!

#9. Bos taurus is the scientific name for which animal?

Bos taurus is the scientific name for the cow.

#10. If you replaced Earth with a Sun-sized star, but the Moon stayed where it was, where would the Moon be relative to the new star?

The Sun is about 700 000 kilometres from its centre to its surface, and the Moon orbits only about 400 000 kilometres from the centre of the Earth.

Was I right?

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5 responses

  1. Martin Towell Avatar
    Martin Towell

    Question 10: I think you should specify that said triangle is on a flat plane, since it’s possible to have more than one right angle on different planar geometries.

  2. Martin Towell Avatar
    Martin Towell

    Oh, I didn’t realise the questions change on each reload – my previous comment was in regards to the maximum number of right angles that a triangle can have.

  3. David Avatar

    Yup, on a sphere you can have three right angles – on the Earth, Singapore, Kinshasa and the South Pole makes a triangle with three almost-right angles!

  4. Brielle Quinn Avatar
    Brielle Quinn

    Great quiz!??

  5. Robby Campano Avatar
    Robby Campano


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