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The Earth's atmosphere

9th grade (Year 10 in England) · 16 questions · Common Core: NGSS.HS-ESS2-6, NGSS.HS-ESS2-7 · England: KS3 Chemistry: Earth and atmosphere, KS4 Combined Science: Earth and atmospheric science

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  1. Question 1

    The bar chart shows the composition of dry air (%). About what percentage is argon and other gases?

    Dry air (%)0102030405060708078nitrogen21oxygen1argon and other gases

    Answer%

  2. Question 2

    Where did most of the oxygen in today's atmosphere come from?

    • A. the oceans boiling
    • B. photosynthesis by algae and plants over billions of years
    • C. the Sun
    • D. volcanoes

  3. Question 3

    Air is about 21% oxygen. About how many cm³ of oxygen are in 500 cm³ of air?

    Answercm³

  4. Question 4

    The bar chart shows the composition of dry air (%). How many percentage points more nitrogen than oxygen is there?

    Dry air (%)0102030405060708078nitrogen21oxygen1argon and other gases

    Answer%

  5. Question 5

    Early Earth's atmosphere was mostly…

    • A. helium
    • B. carbon dioxide, with water vapour, released by volcanoes
    • C. oxygen
    • D. argon

  6. Question 6

    Air is about 21% oxygen. About how many cm³ of oxygen are in 1000 cm³ of air?

    Answercm³

  7. Question 7

    The bar chart shows the composition of dry air (%). How many percentage points more nitrogen than oxygen is there?

    Dry air (%)0102030405060708078nitrogen21oxygen1argon and other gases

    Answer%

  8. Question 8

    What happened to much of the carbon dioxide in the early atmosphere?

    • A. It is all still in the air
    • B. It escaped to the Moon
    • C. It dissolved in oceans and was locked up in rocks and fossil fuels
    • D. It turned into nitrogen

  9. Question 9

    Air is about 21% oxygen. About how many cm³ of oxygen are in 100 cm³ of air?

    Answercm³

  10. Question 10

    The bar chart shows the composition of dry air (%). How many percentage points more nitrogen than oxygen is there?

    Dry air (%)0102030405060708078nitrogen21oxygen1argon and other gases

    Answer%

  11. Question 11

    What happened to much of the carbon dioxide in the early atmosphere?

    • A. It is all still in the air
    • B. It dissolved in oceans and was locked up in rocks and fossil fuels
    • C. It turned into nitrogen
    • D. It escaped to the Moon

  12. Question 12

    Air is about 21% oxygen. About how many cm³ of oxygen are in 200 cm³ of air?

    Answercm³

  13. Question 13

    The bar chart shows the composition of dry air (%). About what percentage is nitrogen?

    Dry air (%)0102030405060708078nitrogen21oxygen1argon and other gases

    Answer%

  14. Question 14

    Which gas makes up most of the air we breathe?

    • A. nitrogen
    • B. hydrogen
    • C. carbon dioxide
    • D. oxygen

  15. Question 15

    Air is about 21% oxygen. About how many cm³ of oxygen are in 100 cm³ of air?

    Answercm³

  16. Question 16

    The bar chart shows the composition of dry air (%). How many percentage points more nitrogen than oxygen is there?

    Dry air (%)0102030405060708078nitrogen21oxygen1argon and other gases

    Answer%

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  1. 1 %
  2. photosynthesis by algae and plants over billions of years
  3. 105 cm³
  4. 57 %
  5. carbon dioxide, with water vapour, released by volcanoes
  6. 210 cm³
  7. 57 %
  8. It dissolved in oceans and was locked up in rocks and fossil fuels
  9. 21 cm³
  10. 57 %
  11. It dissolved in oceans and was locked up in rocks and fossil fuels
  12. 42 cm³
  13. 78 %
  14. nitrogen
  15. 21 cm³
  16. 57 %