2. Fire
Fires breath too
plants use the air from the atmosphere to make food, which they need to grow.
Plants take in carbon dioxide in the air through tiny holes in their leaves. In return, they
release oxygen back into the air.
Animals , like humans, need oxygen to make their bodies work. Animals breath in
oxygen, which is found in the air. This oxygen is taken into animal’s body through the
blood vessels of the lungs. In return, the animals breath carbon dioxide, which is
released into air.
The fire is not a living thing, but it also needs oxygen. Do you know what is a fire is?
It is heat and light energy being released. In a wood-fire, the energy stored inside the
wood is released as it burns. The fire uses up oxygen as energy is released.
A fire cannot keep burning if it runs out of oxygen. This is why you can put out a fire
by smothering it with something heavy, like a blanket.
3. Activity 1
1. What is fire is?
2. Explain in which way fire is like living
thing?
