Chemistry of the atmosphere

The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.

This interactive quiz is suitable for GCSE combined science students studying the Earth’s early atmosphere, how oxygen increased, and how carbon dioxide decreased.

Human activities are causing global warming. Combustion of fuel produces many pollutants. Humans can reduce their impact on the environment.

This interactive quiz is suitable for GCSE combined science students studying the greenhouse effect, global climate change, the carbon footprint, and atmospheric pollutants.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.