Year 13 science
Every topic for the year is below, arranged by the term it is taught. Choose a term to show only that term: each topic has a lesson video, worked questions and practice at three levels.
Autumn term
- BiologyPhotosynthesisThe light-dependent and light-independent reactions, the role of chloroplasts, photophosphorylation and the Calvin cycle, limiting factors, and investigating photosynthesis in the laboratory.100 questionsLesson video
- BiologyRespirationAerobic and anaerobic respiration, glycolysis, the link reaction, the Krebs cycle and oxidative phosphorylation, the roles of coenzymes, and the respiration of other respiratory substrates.100 questionsLesson video
- BiologyEnergy transfer in ecosystems and nutrient cyclesBiomass and energy transfer between trophic levels, productivity and efficiency, the effects of farming practices, and the nitrogen and phosphorus cycles with the role of microorganisms and fertilisers.100 questionsLesson video
- ChemistryRate equations and ordersOrders of reaction from concentration-time and rate-concentration graphs, rate equations and the rate constant, the Arrhenius equation, the rate-determining step and reaction mechanisms.100 questionsLesson video
- ChemistryEquilibrium constantsThe equilibrium constants Kc and Kp, calculating equilibrium amounts, and how temperature, concentration and pressure change the position of equilibrium and the value of the constant.100 questionsLesson video
- ChemistrypH, Ka and bufferspH of strong and weak acids and bases, Ka and pKa, Kw, buffer solutions and how they work, pH curves and indicators for titrations.100 questionsLesson video
- ChemistryLattice enthalpy and entropyBorn-Haber cycles and lattice enthalpy, enthalpy of solution and hydration, entropy change, free energy change and the feasibility of reactions.100 questionsLesson video
- PhysicsFurther mechanicsMomentum and impulse, conservation of momentum in collisions and explosions, elastic and inelastic collisions, circular motion, angular speed and centripetal force.100 questionsLesson video
- PhysicsElectric fieldsCoulomb law, electric field strength, field lines, uniform fields between parallel plates, electric potential and energy, and comparison with gravitational fields.100 questionsLesson video
- PhysicsCapacitorsCapacitance, energy stored, charging and discharging through a resistor, time constant, exponential graphs and uses of capacitors.100 questionsLesson video