PDF chapter test TRY NOW
Answer the following questions:
1. Which of the following are matter?
Chair, air, love, smell, hate, almonds, thought, cold, lemon water, smell of perfume.
Chair, air, love, smell, hate, almonds, thought, cold, lemon water, smell of perfume.
Love, smell, hate, though, and cold are not the category of matter. The is not considered a state of matter. However, the smell or odour of a is classified as matter.
2. Give reasons for the following observation:
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food, you have to go close.
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food, you have to go close.
At lower , particles in cold food have low kinetic energy. At higher temperatures, particles have high and move faster; hence, this smell of hot sizzling food reaches you several meters away, but you have to go close to get the smell from cold food.