This topic summary covers Topic Summary: Recycling within Recycling for GCSE Chemistry. Revise Recycling in Using Resources for GCSE Chemistry with 20 exam-style questions and 14 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 9 of 9 in this topic. Use this topic summary to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 9 of 9
Practice
20 questions
Recall
14 flashcards
Topic Summary: Recycling
Key Terms
- Recycling: Converting waste into new materials — reduces raw material demand and energy use
- Landfill: Burying waste — produces methane and wastes resources
- Incineration: Burning waste — reduces volume, can generate electricity, but releases CO₂
- Waste hierarchy: Reduce → Reuse → Recycle → Energy recovery → Disposal
Must-Know Facts
- Reduce → Reuse → Recycle (in order of priority — Reduce is most important)
- Aluminium recycling: 95% energy saving; steel: 60%; paper: 40%; glass: 30%
- Recycling uses less energy but is NOT energy-free
- Not all plastics are recyclable — contamination is a major challenge
- Landfill produces methane — a potent greenhouse gas
- Contamination of recycling streams is a major practical challenge