Cross polarized filter
Parallel polarizing filters
Perpendicular polarizing filters
45-degree polarizing filters
Simple circuit with motor
Electronic diode
90+45-degree polarizing filters
Types of resistor
Linear potentiometer
Rotary potentiometer
Light refraction with biconvex lens
Electroscope
Electrometer
Loudspeaker and microphone
Transistors
PCB potentiometer
De-colourised bromine water
Bromine water test for alkenes
Ethanal and Brady's reagent
Soil settling out of water
Assorted LEDs
Circuit with bulb and switch
Hand lens
Optics of camera with no lens
理科の実験イメージ
Test tube of bromine water
Optics of near-sightedness
Simple circuit to measure amps
Simple circuit to measure volts
Human skull model
Human pelvis model
Human skeleton model
Human spine model
Human head anatomy model
Potassium permanganate titration
Copper (II) chloride solution
Phenolphthalein at pH9.3
Phenolphthalein a single indicator
Methyl orange in acid
Methyl orange in alkali
Iodine clock reaction
Formation of Lead (II) iodide
Reading a burette
Iron salts in solid and liquid forms
Reading a burette of permanganate
Starch content of leaves
Martian meteorites
Platinum
Universal indicator
Bromine
Copper II sulfate
Lead
Water
Sulfur
Potassium dichromate
Aluminium powder
Gyroscope
Gyroscope balancing on a wire
Iron (II) hydroxide precipitation
Thorianite
Hydrometer
Copper (II) oxide reacting with sulphuric acid
Magnetic field from an electric current
Comparing density of red and white wine
Concave lens
Light dispersion experiment
Light microscope
Human eye model
Digital colorimeter
Digital colorimeter with cuvettes
Digital colorimeters with cuvettes
Eye anatomy model
Visible light spectrum
Copper-silver metal displacement reaction
Iron (III) hydroxide precipitation
Grinding natural rock salt
Recrystallised rock salt
Filtering rock salt solution
Mirror reflecting torchlight
Magnetic attraction
Magnetic repulsion
19th Century bullseye condenser
Additive primary colours
Resistors
Light dependent resistor
Light dependent resistors
Digital stopclock
Digital stopwatch
Soil moisture and light meter
Soil pH meter
Light-dependent resistor
Timing chip
Timing chips
Potentiometers
Buzzer
ノートPCとヘッドセット
スマートフォンと眼鏡
Litmus pH indicator in acid and basic
Microscope
Exercise books
Learning, conceptual image
Human jaw model
Model of human head
Methyl orange
Test for chlorine
Transition element salts in solution
Cobalt chloride test for water
Positive cobalt chloride test for water
The cobalt chloride test for water
Optics of a camera with a lens
Artificial rubies
Refraction in a glass of water
シャーレ
Magnetic field
フラスコ
Coil of solder
Coil of copper
Ring magnets on a wooden pole
Neodynmium magnets
Electrostatic attraction
Hand pouring a jug of water into container of oil and syrup
Isaac Newton, English physicist
Model teeth in UV light
UV torch