Required practicals
AQA required practicals in Biology, Chemistry and Physics.
All 64 AQA GCSE and A-Level required practicals for the three sciences, listed by subject. The lesson library has practical lessons for each subject at GCSE and A-Level, and practicals are flagged in each course's suggested lesson order.
64 practicals in all: Biology 22, Chemistry 20, Physics 22. The titles are our own wording.
Biology 22 practicals
Biology lessons →GCSE 10 practicals
- Aseptic culture and antimicrobial inhibition
- Concentration and plant-tissue mass by osmosis
- Effect of pH on amylase reaction rate
- Factor affecting human reaction time
- Light intensity and pondweed photosynthesis rate
- Microscopy, scientific drawing and magnification
- Population size and species distribution by sampling
- Qualitative tests for carbohydrates, lipids and protein
- Seedling response to light or gravity
- Temperature and decay of fresh milk by pH change
A-Level 12 practicals
- Animal movement in a choice chamber or maze
- Aseptic technique: antimicrobial concentration and zone of inhibition
- Chromatography of photosynthetic pigments and Rf values
- Dilution calibration curve and water potential of plant tissue
- Dissection of a mammalian heart to show mass-transport adaptations
- Environmental factor and species distribution
- Glucose dilution series and colorimetric calibration curve
- Named factor and chloroplast dehydrogenase activity
- Named variable and respiration rate in microorganisms
- Root-tip squash, mitosis and mitotic index
- Substrate concentration and catalase reaction rate
- Temperature and cell-membrane permeability
Chemistry 20 practicals
Chemistry lessons →GCSE 8 practicals
- Analysis and purification of water samples
- Concentration and reaction rate by gas and turbidity methods
- Electrolysis of aqueous solutions with inert electrodes
- Identify ions in unknown ionic compounds
- Paper chromatography and Rf values
- Prepare a pure, dry soluble salt
- Reacting volumes by acid-alkali titration
- Variables affecting temperature changes in reactions
A-Level 12 practicals
- Distillation of a reaction product
- Initial-rate and continuous-monitoring methods
- Measurement of an enthalpy change
- Measurement of electrochemical-cell EMF
- pH curves for weak/strong acid-base pairs
- Prepare and purify an organic solid and liquid
- Reaction rate change with temperature
- Separation by thin-layer chromatography
- Test-tube identification of specified cations and anions
- Test-tube identification of transition-metal ions
- Tests for alcohol, aldehyde, alkene and carboxylic acid
- Volumetric solution and simple acid-base titration
Physics 22 practicals
Physics lessons →GCSE 10 practicals
- Density of regular/irregular solids and liquids
- Determine specific heat capacity
- Effectiveness of thermal insulation materials
- Force-extension relationship for a spring
- Force, mass and acceleration
- I-V characteristics of resistor, lamp and diode
- Measure wave properties in a ripple tank and solid
- Reflection and refraction of light
- Surface-dependent infrared absorption and emission
- Wire length and series/parallel resistance
A-Level 12 practicals
- Boyle's and Charles's gas laws
- Capacitor charge and discharge with log-linear analysis
- Determine cell EMF and internal resistance
- Determine g by free fall
- Determine wire resistivity
- Determine Young modulus
- Force on a wire against B, current and length
- Inverse-square law for gamma radiation
- Mass-spring and pendulum simple harmonic motion
- Search-coil angle and magnetic flux linkage
- Stationary-wave frequency against length, tension and linear density
- Young double slit and diffraction grating interference
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