NCERT Solutions for Class 6 Science Chapter 15
Important NCERT Questions
Class 6th Chapter 15 Air Around Us
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 3
How will you prove that air supports burning?
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Place a burning candle upright in a tray having water. Cover it with a glass jar. Water will make it air-tight. During burning, oxygen is consumed and carbon-dioxide is released. After sometime no oxygen is left inside the jar and flame goes out. It shows air support burning.
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1. Candle Experiment: Cover a lit candle with a jar; the flame diminishes due to lack of oxygen inside.
2. Flame Extinguishment: Proves air supports burning; oxygen from air is necessary for combustion.
3. Reignition: Removing the jar and reigniting the candle confirms air’s role in supporting burning.