写真素材の検索結果

Parallax demonstration

Variable resistance box

Simple circuit with motor

Orbital phases demonstration

Dark blue copper-ammonia complex

Placing jam jar over lit candle in dish containing water

Displacement experiment

Displacement experiment

School Science Lesson

Hand pouring a jug of water into container of oil and syrup

School Science Lesson

理科室

理科室

理科室

人体模型

人体模型

理科室

理科室の椅子

Longitudinal wave

Longitudinal wave

Longitudinal wave

Longitudinal wave

Transverse wave

Transverse wave

Transverse wave

Longitudinal wave

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Cobalt (II) chloride solution

Potassium permanganate titration

Iron (III) chloride solution

Copper (II) chloride solution

Potassium reacting with water

Measuring jug and bulb pipette

pH meter in orange juice

pH in sodium bicarbonate solution

Simple light bulb circuit

Simple light bulb circuit

Digital colorimeter

Digital colorimeter with cuvettes

Digital colorimeter with cuvettes

Conductivity of a glass rod

Conductivity of a metal spoon

Digital colorimeters with cuvettes

pH meter in orange juice

pH in sodium bicarbonate solution

Phenolphthalein a single indicator

De-colourised bromine water

Phenolphthalein a single indicator

Methyl orange in acid

Methyl orange in acid

Phenolphthalein a single indicator

Reading a burette

Ammonia test

Reading a burette of permanganate

Rheostat

Battery and steel wool

Electrostatic attraction

Wave diffraction

Wave interference

Potentiometer jockey

Rheostat

Hydrometer

Optics of camera with no lens

Electroscope

Electrometer

Starch content of leaves

Universal indicator

Starch content of leaves

Potassium chromate and silver nitrate

Cut apple

Magnetic repulsion

Magnetic attraction

Magnesium burning in air

Lithium chloride burns with a bright crimson flame

Sodium chloride burns with a bright yellow flame

Copper (II) sulphate crystals

Salol crystals on a microscope slide

Salol crystals on a chilled microscope slide

Dipping magnet in iron filings

Light dispersion experiment

Weighing an apple

Magnetic field

Reading a burette

Reading a burette of permanganate

Titrating a reactant from a burette

Loudspeaker and microphone

Making a reactant solution

Reading a burette

Reading a burette of permanganate

Transferring a reactant into a flask

Clinometer

Zero-centre ammeter

Magnesium-acid reaction

Magnesium-acid reaction

Iron (II) hydroxide precipitation

Potassium reacting with water

Plasticine ball and marbles in tank of water

Small clear glass filled with water up to a green line

理科の実験（クラフト）

理科の実験（クラフト）

Zinc chloride and zinc sulphate

人体模型

人体模型

Using a 'makeshift' calorimeter

Testing sulphur for conductivity

Teen girl

Teacher and student by whiteboard

Calcium reacting with water, initial stage

Calcium reacting with water, later stage

Limestone-acid reaction

Copper-silver metal displacement reaction

Iron (III) hydroxide precipitation

Potassium reacting with water

Grinding natural rock salt

Recrystallised rock salt

Filtering rock salt solution

Student looking down a microscope

Transition element salts in solution

Transition element salts in solution

Transition element salts in solution

Transition element salts in solution

Potassium permanganate titration

Iron (II) chloride solution

Conductivity of a salt solution

Conductivity of aluminium

Magnesium ribbon in ethanoic acid

Rates of reaction experiment

Magnesium ribbon in ethanoic acid

Ethanal and Brady's reagent

Magnesium ribbon in ethanoic acid

Magnesium ribbon in ethanoic acid

Formation of Lead (II) iodide

Formation of Lead (II) iodide

Formation of Lead (II) iodide

Stretched spring

Stretched spring

Formation of Lead (II) iodide

Human eye model

Human eye model

Human eye model

Human eye model

Human eye model

Human eye model

Optics of near-sightedness

Simple motor

Simple motor

Fluid pressure demonstration

満点のテスト

満点のテスト

満点のテスト

満点のテスト

University science laboratory

理科室

理科室

地層の模型

理科室の黒板

理科室の黒板

Magnetic field

Anatomical teaching model

Anatomical teaching model

Simple circuit to measure amps

Simple circuit to measure amps

Simple circuit to measure volts

Simple circuit to measure amps

Simple circuit to measure volts

実験をしている女子中学生

実験をしている女子中学生

実験をしている女子中学生

Nickel displacing copper

Halogen displacement reaction.

Zinc displacing copper

Zinc displacing lead

Reaction rates

Displacement reaction

Displacement reaction

Ligand substitution

Nickel displacing copper

Math sign for elementary classroom

Civilian Conservation Corps studying maths with WPA teacher

算数の授業（クラフト）

Titration technique

Student looking down a microscope

実験をする小学生