Optics of a camera with a lens
Optics of camera with no lens
Concave lens
Light refraction with biconvex lens
Convergence and divergence
Light dispersion experiment
Electrostatic attraction
Diagram of camera showing projection of an object onto film
Magnifying glass
Digital colorimeter
Digital colorimeter with cuvettes
Digital colorimeters with cuvettes
Hand lens
Microscope lens
Lens holder on an optical bench
Rates of reaction experiment
Potentiometer jockey
Camera lens
Cross polarized filter
Hydrogen emission tube
Optics of near-sightedness
Magnetic attraction
Salol crystals on a microscope slide
Salol crystals on a chilled microscope slide
Longitudinal wave
Transverse wave
Daniell electrochemical cell
Immiscible liquids
Simple light bulb circuit
Conductivity of a salt solution
Conductivity of aluminium
Conductivity of a carbon rod
Conductivity of a glass rod
Conductivity of a metal spoon
Displacement experiment
Variable resistance box
Rheostat
Battery and steel wool
Wave diffraction
Wave interference
Fluid pressure demonstration
Simple circuit with motor
Using a 'makeshift' calorimeter
Stretched springs
Stretched spring
Hydrometer
Electroscope
Electrometer
Soil settling out of water
Magnetic repulsion
Testing sulphur for conductivity
Hand pouring a jug of water into container of oil and syrup
Dipping magnet in iron filings
Orbital phases demonstration
Weighing an apple
Magnetic field
Loudspeaker and microphone
Wide angle lens
Parallel polarizing filters
Zoom camera lens
Prism refracting visible light
Microscope lens in a laboratory
Classroom optical bench
カメラのレンズ
Receiving screen on an optical bench
Child using a thermal imaging camera at a science fair
A young boy photographs a field vole
Light microscope
Human eye model
Assorted LEDs
Refraction in an aquarium
Eye anatomy model
Visible light spectrum
理科室の黒板
Fibre optics
Straight waves on a ripple tank
Optics experiment
Soxhlet extractor
Titration technique
Water samples coloured with beetroot
Transition element salts in solution
Transition element salts
Transition elements and their salts
Potassium permanganate titration
Cobalt (II) chloride solution
Precipitates of transition metal salts
Iron (II) chloride solution
Iron (III) chloride solution
Copper (II) chloride solution
Potassium reacting with water
Measuring jug and bulb pipette
Plant transpiration
pH meter in orange juice
pH in sodium bicarbonate solution
Phenolphthalein a single indicator
Magnesium ribbon in ethanoic acid
Ethanal and Brady's reagent
The ammonia test
Methyl orange
De-colourised bromine water
Methyl orange in acid