試験管
試験管に入った薬
実験
複数の試験管
丸フラスコ
実験イメージ
Iron (III) chloride solution
Close up of pipette in test tube
液体を試験管に入れる
三角フラスコ
フラスコ
試験管とスポイド
4個のシャーレ
Healthcare And Medicine
試験管と葉っぱ
Biological research, conceptual image
水と油
Test tubes in a holder
Ammonia test
試験管とスポイト
Row of test tubes with liquid, yellow background
Germany, Bavaria, Munich, Droplet being dispensed from pipette into test tube
スポイド
Cobalt (II) chloride solution
Copper (II) chloride solution
試験管と泡
試験管と手
Test tubes in a tube rack
Cobalt chloride test for water
Positive cobalt chloride test for water
Lab samples in test tubes
Healthcare And Medicine,Glassware,Utensil,Test Tube,Beaker,Measuring Beaker
Healthcare And Medicine,Glassware,Laboratory Glassware,Utensil,,Test Tube
Close up of test tubes
Copper reacting with nitric acid
Test tube with red liquid
実験器具
水の中の試験管
Water
フラスコの中の金魚
Benzoic acid precipitate
Eppendorf tubes and pipette
試験管のメモリ
Universal indicator
Potassium chromate and silver nitrate
De-colourised bromine water