Science Revision
GCSE Physics, Chemistry and Biology — explained simply with worked examples and practice questions.
Electricity
Current, voltage, resistance, Ohm's law, series and parallel circuits, power equations.
Waves
Transverse and longitudinal waves, wave properties, electromagnetic spectrum, reflection and refraction.
Forces and Motion
Newton's laws, speed, acceleration, friction and terminal velocity.
Energy Stores and Transfers
The 8 energy stores, energy transfers, conservation of energy and efficiency.
Chemical Bonding
Ionic, covalent and metallic bonding. Properties, structures, dot and cross diagrams.
Atomic Structure
Protons, neutrons, electrons, isotopes and electron shell configuration.
The Periodic Table
Groups, periods, alkali metals, halogens, noble gases and trends.
Evolution and Natural Selection
Darwin, natural selection, evidence for evolution, fossils, antibiotic resistance and speciation.
Cells and Organisation
Animal and plant cells, organelles, specialised cells and levels of organisation.
Ecosystems
Food chains, food webs, biodiversity, sampling and the carbon cycle.