TOPIC 5: MATTER
Concept of matter
Concept of Matter
Explain concept of matter
Matteris anything that has mass and occupies space. Therefore, anythingaround us provided it has mass...
TOPIC 6: AIR COMBUSTION, RUSTING AND FIRE FIGHTING.
Composition of air
Air
is a mixture of different gases. The gases that make up the air include
nitrogen, oxygen,...