Practice questions
A free sample of Brainlag Learn questions. Choose a course, then filter by topic and difficulty. Each question opens in Learn, where it is marked and explained.
1415 questions
| Practice questions | Topic | Difficulty |
|---|---|---|
| Pollutants from burning a fuel | GCSE Chemistry: The Earth's atmosphere | 5 marks |
| Effects of climate change and what can be done (6 marks) | GCSE Chemistry: The Earth's atmosphere | 6 marks |
| The carbon footprint of a journey | GCSE Chemistry: The Earth's atmosphere | 5 marks |
| Potable water and where it comes from | GCSE Chemistry: Using resources | 1 mark |
| Filtering and sterilising fresh water | GCSE Chemistry: Using resources | 1 mark |
| The stages of sewage treatment | GCSE Chemistry: Using resources | 1 mark |
| Mass of chlorine to treat a water supply | GCSE Chemistry: Using resources | 3 marks |
| Energy for desalination: distillation against reverse osmosis | GCSE Chemistry: Using resources | 4 marks |
| Required practical: comparing dissolved solids in three samples | GCSE Chemistry: Using resources | 4 marks |
| Required practical: water recovered by distillation | GCSE Chemistry: Using resources | 4 marks |
| Required practical: distillation and purity | GCSE Chemistry: Using resources | 1 mark |
| Required practical: measuring pH | GCSE Chemistry: Using resources | 1 mark |
| Required practical: hazards and how to control them | GCSE Chemistry: Using resources | 1 mark |
| Plan: which water sample needs least treatment (6 marks) | GCSE Chemistry: Using resources | 6 marks |
| Comparing ways to make potable water (6 marks) | GCSE Chemistry: Using resources | 6 marks |
| Which stage of a life cycle assessment | GCSE Chemistry: Using resources | 1 mark |
| How reliable is a life cycle assessment? | GCSE Chemistry: Using resources | 1 mark |
| Comparing two products with a life cycle assessment | GCSE Chemistry: Using resources | 4 marks |
| When does a reusable bottle win? | GCSE Chemistry: Using resources | 5 marks |
| Share of the energy used at one stage | GCSE Chemistry: Using resources | 2 marks |
| Reduce, reuse or recycle? | GCSE Chemistry: Using resources | 1 mark |
| Energy saved by recycling, counting collection | GCSE Chemistry: Using resources | 5 marks |
| Ore saved by recycling: percentage composition | GCSE Chemistry: Using resources | 5 marks |
| Evaluating shopping bags with life cycle data (6 marks) | GCSE Chemistry: Using resources | 6 marks |
| The stages of sewage treatment | GCSE Chemistry: Using resources | 5 marks |
| Chlorine to sterilise a water supply | GCSE Chemistry: Using resources | 4 marks |
| Is desalination worth it? | GCSE Chemistry: Using resources | 5 marks |
| Define the terms for using resources | GCSE Chemistry: Using resources | 3 marks |
| The case for recycling a metal | GCSE Chemistry: Using resources | 6 marks |
| Using metals sustainably (6 marks) | GCSE Chemistry: Using resources | 6 marks |
Questions are shared by every board that teaches the topic.