A2.1.1—Conditions on early Earth Topic Practice
A2.1.1—Conditions on early Earth Topic Practice
Practise judging early Earth conditions using chamber experiments, possible synthesis sites, and sources of water or organic compounds.
How this is tested
- evaluate chamber conditions against likely prebiotic Earth temperature and gases
- compare oceans, vents, comets and other settings for organic molecule synthesis
- explain how evaporation, salt water and anoxic gases support or limit a model