Chemistry GCSE
Early Atmosphere
What Early Atmosphere means in Chemistry GCSE, as defined for Pearson Edexcel.
Definition of Early Atmosphere
The atmosphere present on Earth roughly 4.6 billion years ago, consisting mainly of carbon dioxide, water vapour, and nitrogen, with little or no oxygen.
Topics that use Early Atmosphere
- Fuels and Earth science (Pearson Edexcel GCSE)
Related terms
Using Early Atmosphere in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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