Chapter 2 : Burning and Rusting Flashcards
1
Q
__________ is needed for burning.
A
Air
2
Q
Air is need for _____________
A
burning
3
Q
If we stops the supply of air, burning ____________
A
stops
4
Q
If we stops _________________, burning stops
A
the supply of air
5
Q
People apply this principle when ______________________
A
designing fire-fight equipment
6
Q
_____________________ is produced during burning
A
Carbon dioxide
7
Q
Smoke from fires contains _________________
A
harmful substances.
8
Q
When we escape from a fire, we should ____________________
A
cover our noses and mouths with wet towels to filter out some of the harmful substances
9
Q
Iron object rust easily when __________
A
they are in contact with air and water.
10
Q
Rusting affect
A
iron’s appearance and uses
