Year 12 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.
Spring term
- BiologyCell structureEukaryotic and prokaryotic cells and their organelles, the differences between cells, the principles of optical and electron microscopy, magnification calculations, cell fractionation and ultracentrifugation, and viruses as acellular particles.100 questionsLesson video
- BiologyThe cell cycle and cell divisionThe cell cycle, mitosis and the stages of cell division, binary fission in prokaryotes, how viruses replicate, and how uncontrolled cell division leads to cancer and how treatments target it.100 questionsLesson video
- BiologyTransport across cell membranesThe fluid mosaic structure of cell membranes, diffusion and facilitated diffusion, osmosis and water potential, active transport and co-transport, and the factors that affect the rate of movement across membranes.100 questionsLesson video
- BiologyDNA, genes and protein synthesisDNA in prokaryotes and eukaryotes, genes and the genetic code, chromosomes, the structure of mRNA and tRNA, transcription and translation, and how the base sequence determines the order of amino acids.100 questionsLesson video
- ChemistryBonding and structureIonic, covalent, dative covalent and metallic bonding, giant and simple structures, shapes of molecules and ions, electronegativity, polarity and intermolecular forces.100 questionsLesson video
- ChemistryThe periodic table, group 2 and the halogensPeriodic trends in the periodic table, the reactions and trends of group 2 elements and their compounds, the halogens, their displacement reactions and disproportionation, and tests for halide ions.100 questionsLesson video
- ChemistryEnthalpy changesExothermic and endothermic reactions, standard enthalpy changes, calorimetry, Hess law cycles and bond enthalpy calculations.100 questionsLesson video
- ChemistryOrganic analysisTest-tube tests for functional groups, infrared spectroscopy and mass spectrometry, and using spectra to identify organic compounds.100 questionsLesson video
- PhysicsWork, energy and powerWork done by a force, kinetic and gravitational potential energy, conservation of energy, power and efficiency.100 questionsLesson video
- PhysicsElectric circuitsCurrent, potential difference and resistance, Ohm law, resistivity, series and parallel circuits, internal resistance and EMF, potential dividers and conservation of charge and energy.100 questionsLesson video
- PhysicsMaterialsDensity, Hooke law and elastic energy, stress, strain and the Young modulus, stress-strain graphs, and viscous drag.100 questionsLesson video