ガスバーナー
Bunsen burner with pilot light
Copper chemistry experiment
Flame test on potassium
アルコールランプの炎
Sterilising a wire loop
Strontium flame test
Flame test on sodium
Lithium flame test
Potassium flame test
Sodium flame test
Calcium flame test
Heating sulphur
Barium flame test
Copper sulphate being heated
炎
炎色反応
Lit bunsen burner
Evaporating water from a brine solution
Gas burner, close-up
焚き火
Copper powder being heated
Burning aluminium
Burning iron
Iron filings in a bunsen flame
ガスバーナーで炭に着火する
ガスの炎
ガスコンロ
炎と青い煙
Germany, Munich, Art foundry, Bunsen burner
Burning magnesium
Iron filings being heated
Copper flame test
Heating zinc oxide
Gas hob
Heating an iron nail
Burning match
燃える炎
炎 イメージ
爆発
篝火
立ち昇る炎
Flames
flames of fire on black background
flames of fire making circle
キャンドル
炎と白い煙
Flames against black background
囲炉裏の炎
イメージ 薪ストーブの炎
Copper oxidation experiment
炭火