U字磁石
白い背景に置かれた磁石
Magnet attracting iron filings, elevated view
Horseshoe magnet attracting metal screws
Horseshoe magnet attracting metal filings
Metal objects attached to magnet
Magnet attracting metal files
Hand holding horseshoe magnet
Coins attracted by horseshoe magnet
磁石
Metal files surrounding magnet
ビーカー
三角フラスコ
平底フラスコ
方位磁針
Dipping magnet in iron filings
広口試薬瓶
シャーレ
大豆の入ったアルコールランプ
4個のシャーレ
Compass
アンティークコンパス
方位磁石
Magnetic field
Iron filings with a magnet
Safety pins with a magnet
Magnetic probe showing field direction
Magnetic repulsion
Hand holding a magnet
Hand holding magnet with push pins
Hand holding magnet, picking up metal
Bar magnet attracting metal filings
Metal filings attached to magnets
Compasses arranged around a coil
Electromagnet attracting iron filings
Magnets positioned as opposites
Iron filings and sand
Iron filings on a magnet
Bar magnets attracting metal filings
試験管
スポイト
複数の試験管
メスシリンダー
Magnetic toy
Two bar magnets positioned opposite
Two magnets with iron filing
Magnetism
大豆の入ったメスシリンダー
フラスコ
Universal indicator
Loudspeaker and microphone
Healthcare And Medicine
地図と方位磁石
理科の実験イメージ
Horseshoe magnet
Magnets with a small compass
Magnets
Magnetism experiment, 1889
Testing iron for magnetic properties
バネ秤
Recrystallised rock salt
標本瓶
Reading a burette
Healthcare And Medicine,Glassware,Utensil,Test Tube,Beaker,Measuring Beaker
Healthcare And Medicine,Glassware,Laboratory Glassware,Utensil,,Test TubeHealthcare And Medicine,Test Tube
Healthcare And Medicine,Glassware,Laboratory Glassware,Utensil,,Test Tube
スポイトとメスフラスコ
isolated on white bacground, selective focus on S
Motor effect experiment
Girl's hand holding magnet
Experiment showing electromagnet effect
Ring magnets on a wooden pole
シャーレとスポイト
三角フラスコとインク
ビーカーとインク
試験管とスポイト
Magnetising a needle
Magnet close-up
古地図と方位磁石
Iron filings on a horseshoe magnet
Simple motor
上皿天秤
光学顕微鏡
Battery connected to coil of wire creating electromagnet
Chemical Laboratory Glassware
Healthcare And Medicine,Glassware,Laboratory Glassware,Utensil,
Copper-silver metal displacement reaction
ヨーロッパの地図とコンパス
コンパスと世界地図
Close up of test tubes
Illustration Technique, Measuring Beaker, Test Tube,
実験イメージ
液体を試験管に入れる
Children's mathematics equipment
Laboratory Test & Medicines
Many compass showing different direc