Anu wants to boil water quickly in a test tube. On observing the different zones of the flame, she is not able to decide which zone of the flame will be best for boiling water quickly. Help her in this activity.

Anu should boil the water in the hottest zone of the flame, which is non-luminous zone or the outermost zone of the flame

A candle flame consists of three different zones. Each zone has different temperatures. Every zone has different colour and this will help us in understanding the temperatures of each zone.

  1. The first zone is called the Outer zone
  2. The second zone is called the Middle zone
  3. The third zone is called as Inner zone

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