Free GCSE Science Solver

GCSE Science is the UK Year 10–11 science qualification. Students take one of two routes: Combined Science (also called Trilogy on AQA, Double Award on Pearson/Edexcel) which covers all three disciplines across a single two-GCSE award, OR Triple Science, which awards three separate GCSEs (one each in Biology, Chemistry, and Physics) with more depth per subject. Both routes follow the same core DfE specification; Triple has extra 'Triple-only' topics not in Combined.

Every student takes SIX exam papers: two Biology, two Chemistry, two Physics. Combined Science has shorter papers (75 min each) than Triple (105 min each). Tiers are Foundation (grades 1-5) and Higher (grades 4-9). Higher-tier papers include a small overlap with Foundation plus the harder grade-7-to-9 content.

Biology content: cell biology, organisation (circulatory system, digestion, plants), infection and response, bioenergetics (respiration, photosynthesis), homeostasis and response, inheritance/variation/evolution, ecology. Triple adds: brain/eye structure, hormones deep dive, cloning, speciation. Chemistry: atomic structure, bonding/structure/properties, quantitative chemistry (moles, calculations — Higher only), chemical changes, energy changes, rates of reaction, organic chemistry, chemical analysis, chemistry of the atmosphere, using resources. Triple adds: nanoparticles, identification of ions, advanced organic synthesis. Physics: forces, energy, waves, electricity, magnetism/electromagnetism, particle model, atomic structure, space physics (Triple only).

GCSE mark schemes reward: (1) stating the equation first, then substituting (method marks); (2) showing unit conversions explicitly (100 cm = 1 m); (3) appropriate significant figures in the final answer; (4) logical structured prose in 6-mark extended-response questions. The '6-marker' is the hardest question type — it requires writing a structured paragraph with indicative content points, AND examiners award marks on a holistic banding (4-6 for excellent structured response, 1-3 for scattered points, 0 for no relevant content). The solver structures these answers as Point-Evidence-Explanation paragraphs explicitly.

Required practicals are embedded in the exam — ~15% of papers test knowledge of the 21 required practicals (Combined) or 28 (Triple). The solver's method walkthroughs reference the required practical variable table when a question draws on one. Students who can reproduce the method, state the IVs/DVs/controlled variables, and explain sources of error do well on this section.