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Brainlag Learn / GCSE Chemistry

The atmosphere and using resources

The air now and how it formed, greenhouse gases and pollutants, potable water and its practical, life cycles and recycling, corrosion and materials, and the Haber process with fertilisers.

Lessons

  1. The Earth's atmosphere, then and nowWhat dry air is made of, percentage and fraction calculations, and how volcanoes, oceans and living things turned an early carbon dioxide atmosphere into the air we breathe. 20 min, free
  2. Greenhouse gases, climate change and air pollutionHow the greenhouse effect works, how human activity adds greenhouse gases, reading the data, carbon footprints, and the pollutants made when fuels burn. 25 min, free
  3. Earth's resources and potable waterFinite and renewable resources, sustainable development, making water safe to drink, the water analysis and purification practical, and treating waste water. 25 min, Plus
  4. Extracting copper differently, life cycles and recyclingPhytomining and bioleaching for low-grade copper ores, reading a life cycle assessment, and how reducing, reusing and recycling save resources and energy. 20 min, Plus
  5. Corrosion, alloys and useful materialsWhat rusting needs and how to stop it, alloys and gold carats, glass and ceramics, the two kinds of polymer, and composites. 25 min, Plus, Chemistry only
  6. The Haber process and NPK fertilisersMaking ammonia, why the conditions are a compromise, recycling unreacted gases, NPK fertilisers and the percentage of a nutrient in a fertiliser. 25 min, with the Molar Mass Calculator, Plus, Chemistry only

Practise and test

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