1. T.G.T English, K.V. No 1, Naval Base, Kochi.
TOPIC
FIRE: friend and foe
Class-VII By
LEKSHMI.N.NAIR
T.G.T English, K.V. No 1, Naval Base, Kochi.

2. WHAT IS A FIRE? FIRE is the result of chemical reaction.
When the oxygen in the air combines with carbon and hydrogen in a fuel, a chemical reaction takes place.
Energy in the form of heat and light is released in this process.
This is what we call fire.

3. What are the three things needed to make a fire?
1. Fuel
2.Oxygen
3. Heat

4. Uses of Fire Cook our food. Warm our homes in winter.
Generate electricity.

5. Three main ways to put out fire
Take away the fuel.
Prevent oxygen from reaching it.
Remove the heat.

6. What is the best thing to fight an electric fire?
CARBON DIOXIDE EXTINGUISHER

7. FIRE FIGHTERS They are highly trained people.
They cut off electricity supply.
Knock down dangerous walls.
Spray water and other materials
to bring fire under control.

8. Match the following 1.Fuel 2.Oxygen 3. Heat Lighted matchstick Air
Coal
Wood
Burning coal
Smouldering paper
Cooking gas
1.Fuel
2.Oxygen
3. Heat

9. Rearrange the sentences in correct order
That is fire.
A chemical reaction takes place.
Energy in the form of heat and light is released.
Oxygen combines with carbon and hydrogen.