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Science skills
Measurement in science
Word and chemical equations
Balancing equations
Filtration, distillation and chromatography
Scale and structure
Atomic structure
Electronic configuration and valency
States and properties of matter
Characteristics of gases
Density
Diffusion
Cell structure
Cell functions
Classification and organisation
Classification
Metals and non-metals
Periodic trends
Tissues, organs and systems
Life cycles
Materials and bonding
Structure and bonding
Properties of elements and compounds
Alloys
Solutions, colloids and suspensions
Alkanes, alkenes and alcohols
Structural formulae – carboxylic acids and esters
Chemical reactions
Acids and bases
pH, titrations and indicators
Formation and uses of salts
Reactivity series
Redox reactions
Electrochemical cells
Endothermic and exothermic reactions
Collision theory and reaction rates
Reversible reactions
Energy
Transfer and transformation of energy
Work, power and efficiency
Energy sources and resources
Photosynthesis
Cell respiration
Nutrition and digestion
Forces and motion
Speed and motion graphs
Forces and effects of forces
Newton's laws
Gravity and gravitational fields
Pressure
Thermal physics
Kinetic theory and phase change
Heat transfer
Thermal properties of matter
Electricity and magnetism
Static electricity
Electric circuits
Current, voltage and power
Magnetism and magnetic fields
Electromagnetic induction
Generation and transmission of electricity
Waves
Longitudinal and transverse waves
Wave equation
Sound waves
Reflection, refraction and diffraction
Electromagnetic spectrum and applications
Atoms and space
Atomic physics
Radioactivity
The Big Bang theory
The solar system
Planets and satellites
Genetics and evolution
DNA
Cell division
Reproduction
Inheritance and variation
Natural selection
Speciation and extinction
Body systems
Transport and circulation
Gas exchange
Hormones
Homeostasis
Receptors and senses
Biochemistry and enzymes
Osmosis
Ecosystems and environment
Habitat
Food chains and webs
Ecosystem cycles
Predator-prey and competition
Pathogens and parasites
Atmospheric composition
Human impact and sustainability
Habitat change and destruction
Pollution and conservation
Overexploitation
Emissions and environmental implications
Factors affecting human health
Vaccination
Mitigation of adverse effects
Biotechnology and the future
Genetic modification
Cloning
Genome mapping and applications
3D tissue and organ printing
Renewable energy and sustainability
Density is the amount of mass per unit volume of a substance.
Upthrust
Upthrust is the upward force exerted by a fluid on an object immersed in it.