GCSE Chemistry – The atmosphere

Last updated: 15/04/2020
Edexcel International GCSE Science – Combined science foundation Inorganic Chemistry GCSE Chemistry – The atmosphere

Learning Objectives

-I can state the different proportions of the gases in the current atmosphere
-I can state that the Earth’s atmosphere has changed over time
-I can describe the changes that have led to the evolution of today’s atmosphere
-I can explain how the levels of oxygen has increased
-I can explain how the levels of carbon dioxide has increased

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  1. Current
  2. Review
  3. Answered

  1. Today, what is the majority of the Earth’s atmosphere made up from?

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  2. What proportion of todays atmosphere is made up of nitrogen?

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  3. What proportion of todays atmosphere is made up of oxygen?

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  4. What proportion of todays atmosphere is made up of carbon dioxide?

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  5. What formed the Earth’s early atmosphere?

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  6. During the Earth’s early atmosphere, which of the following had the highest proportion of the atmosphere?

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  7. Which of the following gases formed the Earth’s most early atmosphere?

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  8. Which of the following gases formed the Earth’s most early atmosphere?

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  9. Which of the following gases formed the Earth’s most early atmosphere?

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  10. What were there tiny traces of in the Earth’s early atmosphere?

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  11. What were there tiny traces of in the Earth’s early atmosphere?

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  12. Which of the following was not apart of the Earth’s early atmosphere?

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  13. What condensed within the early atmosphere and fell as rain and forming oceans?

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  14. Which of the following reacted with the ammonia in the Earth’s atmosphere, causing the levels of ammonia to decrease over time?

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  15. Which of the following reacted with the methane in the Earth’s atmosphere, causing the levels of ammonia to decrease over time?

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  16. Originally, what began forming to increase the levels of oxygen in the atmosphere?

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  17. Originally, what began forming to increase the levels of oxygen in the atmosphere?

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  18. Through what process did algae and bacteria being to release oxygen into the Earth’s atmosphere?

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  19. During the Earth’s early atmosphere plants began to form, what soon after began to evolve?

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  20. What gets used up during photosynthesis?

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  21. What gets released during photosynthesis?

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  22. What gets used up during respiration?

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  23. What gets released during respiration?

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  24. Which of the following has been taking in the carbon dioxide from the atmosphere?

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  25. Which of the following has been taking in the carbon dioxide from the atmosphere?

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