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2021 Megaquiz!

By David, 1 January 2021 Quiz

Here’s our megaquiz for the year! Below are 10 questions picked from every quiz we wrote in 2020. If you want more questions, just hit refresh and we’ll grab you another 10. Good luck!


Well done! You have some real science smarts!

Oh no! Why not try again by refreshing the page – you’ll get different questions!

#1. The standard note for tuning instruments is A (above middle C). At what frequency does the note vibrate?

440 Hz sounds as an A and it is now the standard tuning note for instruments. While music has a long history, this standard was only implemented by the International Organization for Standardization in 1955.

#2. Which of the fundamental forces is the strongest?

The strong force holds together the nuclei of atoms, and it’s the strongest of the four fundamental forces.

#3. Which of the following elements is represented as P on the periodic table?

The letter P represents phosphorus. Potassium is K, polonium is Po, and tungsten is W.

#4. What line is 23.5 degrees south of the equator?

Places on the Tropic of Capricorn are directly under the Sun at midday on their longest day of the year.

#5. Which element has the symbol Hg?

Mercury (Hg) was once called hydrargyrum, which comes from the Greek words for water and silver.

#6. You can find astroblemes at Vredefort, Chicxulub and Wolfe Creek, but what exactly are astroblemes?

Astroblemes are impact craters. The name means ‘star wound’.

#7. What is the name for an animal that comes out during the day?

A diurnal animal comes out during the day. It’s like the opposite of a nocturnal animal!

#8. Which mammal has the most neck bones?

Three toed sloths have nine neck bones. Almost all other mammals, including humans and giraffes, have seven.

#9. What space region are the dwarf planets Pluto, Haumea and Makemake part of?

The Kuiper belt is a bit like the asteroid belt, but it’s just outside the orbit of Neptune, rather than between Mars and Jupiter.

#10. What is the heaviest species of bird alive today?

Ostriches can weigh more than 140 kilograms!

Was I right?

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  1. Hey, I got 9 right, missed moons of Pluto, but you gave me an 8/10. Looks like you program did not account for the extra 5 question, just the first five since I aced the last 5.

    1. Hi Terry,
      Thanks for the feedback! Sadly, the quiz changes every time you load it, so I can’t get the same bug to appear. But let us know if it happens again, and I’ll dig a bit deeper.

      If you want another quiz, just press f5 on the quiz page to refresh the page.

  2. Hi David,
    I thought there might be a larger problem, though very minro,` and you would get a number of responses so I wanted to be first. :-} All is good.

    Thank you


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