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Earth Quiz

Quiz Questions

  1. If we were to list Solar System objects by size, largest to smallest including the Sun, would the Earth be 4th, 5th, 6th, or 7th in that list?
  2. What is the world's largest structure composed of living entities?
  3. The earth orbits around the sun at what sort of speed: (a) 670 miles per hour, (b) 6,700 miles per hour, or (c) 67,000 miles per hour?
  4. Which is warmer: the north or south pole?
  5. Is sandstone and limestone types of igneous, sedimentery or metamorphic rock?

  6. Scientists discovered the first hole in the ozone layer in 1985 above which continent?
  7. The top of Chimborazo is the farthest point on the Earth’s surface from the Earth’s centre - in which country is this mountain?
  8. How old is the earth: (a) 1.5 billion, (b) 3.5 billion, or (c) 4.5 billion years?
  9. The lowest exposed land on Earth is at the shores of which body of water?
  10. Can you name the world's longest above-water mountain range?
  11. What name is given to the layer inside the Earth bounded below by the core and above by the crust?
  12. The Earth's atmosphere is composed of 78% Nitrogen and 21% Oxygen, but can you name the third-most abundant gas?
  13. Can you name the world's smallest ocean?
  14. In miles, what is the Moon's average distance from the Earth: (a) 239,000 miles, (b) 1,239,000 miles, or (c) 2,239,000 miles?
  15. Does the Earth take exactly 24 hours to rotate on its axis, or less than 24 hours, or more?
  16. Asia constitutes roughly 60% of the world's population but how much of the Earth's total land area: (a) 30%, (b) 40%, or (c) 50%?
  17. The deepest part of the ocean is called the Challenger Deep and is located in the southern end of which trench?
  18. By weight, the Earth's crust is composed of 47% Oxygen, 28% Silicon and 5% Iron - however, which element makes 8% of the crust by weight?
  19. What name is often given to the discontinuity which is the boundary between the Earth's crust and the mantle: (a) Moho, (b) Morris, (c) Zaragoza?
  20. From the Earth to the sun is one AU, what does AU stand for?
  21. Which region of the Atlantic Ocean is called a sea although unlike any other sea it has no land boundaries?
  22. What percentage of Earth's surface is land consisting of continents and islands: (a) 29%, (b) 34%, or (c) 39%?
  23. True or false? The Moon orbits the Earth roughly as fast as a rifle bullet?
  24. True or false? Around thirteen thousand Earth’s could fit into the Sun?
  25. If you weighed 100 pounds at the north pole, at the equator would you weigh the same, heavier, or lighter?


  1. 6th (in order, the Sun, Jupiter, Saturn, Uranus and Neptune are all larger)
  2. The Great Barrier Reef
  3. (c) 67,000 miles per hour
  4. North pole is warmer
  5. Sedimentary
  6. Antarctica
  7. Ecuador
  8. (c) 4.5 billion years
  9. Dead Sea
  10. The Andes
  11. Mantle
  12. Argon (0.93%)
  13. The Arctic Ocean
  14. (a) 239,000 miles
  15. Less (It’s actually 23 hours, 56 minutes and 4 seconds.)
  16. (a) 30%
  17. The Mariana Trench
  18. Aluminium (8%)
  19. Moho
  20. Astronomical Unit
  21. Sargasso sea
  22. (a) 29%
  23. True

  24. False (1.3 million Earth's can fit inside the Sun)
  25. Lighter (you would weigh 99.65 pounds, or 5.5 ounces less)