The Earth's atmosphere

The air now and how it formed, greenhouse gases and climate change, carbon footprints and the pollutants from burning fuels. Its later lessons on water, life cycles, materials and the Haber process stay here too; Using resources teaches them in full.

Start: The Earth's atmosphere, then and nowAbout 20 min, free

Lessons

Practise and test

Mixed reviewQuestions mixed across your lessons.

By the end you can

Give the composition of air and explain how the early atmosphere changed
Explain the greenhouse effect and calculate percentage changes from climate data
Match combustion pollutants to their sources and effects
Calculate carbon footprints and evaluate ways to reduce them
Find the mass of dissolved solids in water and describe how water is made potable
Compare products with a life cycle assessment and calculate savings from recycling
Explain rusting, use carats and percentages for alloys, and evaluate the Haber process conditions (Chemistry only)

Revision notes

The atmosphere, greenhouse gases and pollution

Specifications

AQA 8462 (Chemistry) 4.9 (lessons 3 to 6 also cover 4.10, taught in full in Using resources)
AQA 8464 (Combined Trilogy) 5.9 (lessons 3 and 4 also cover 5.10)
Pearson Edexcel 1CH0 and 1SC0 Topic 8 (lessons 3 to 6 also cover parts of Topics 2, 4, 5 and 9)
OCR Gateway J248 and J250 C6.3 (J250: C6.2), with lessons 3 to 6 also covering C6.1

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