GCSE Study Guide 2026
Everything you need to pass the GCSE exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 GCSE Exam Format at a Glance
📚 GCSE Topics to Study (87)
✍️ Sample GCSE Questions & Answers
1. In a reversible reaction at equilibrium, what does Le Chatelier's principle predict if pressure is increased?
Le Chatelier's principle states that increasing pressure shifts equilibrium toward the side with fewer moles of gas to reduce pressure.
2. Why do ionic compounds have high melting points?
In a giant ionic lattice, many strong electrostatic attractions between ions must be broken, requiring lots of energy.
3. Identify the type of clause in bold: 'She left **before the show ended**.'
'Before the show ended' is an adverbial clause modifying when she left.
4. An element has 17 protons and 18 neutrons. What is its mass number?
Mass number = protons + neutrons = 17 + 18 = 35.
5. Which type of bonding involves the sharing of electrons between two non-metal atoms?
Covalent bonding occurs when two non-metal atoms share pairs of electrons to achieve stable electron configurations.
6. Active transport differs from diffusion because it:
Active transport uses ATP energy to move substances from low to high concentration — against the concentration gradient.
🎯 Free GCSE Practice Tests
📖 GCSE Guides & Articles
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