1. Which of the following are matter?
Chair, air, love, smell, hate,
almonds, thought, cold, lemon
water, smell of perfume.
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.
3. A diver is able to cut through
water in a swimming pool. Which
property of matter does this
observation show?
4. What are the characteristics of
the particles of matter?​

in question 1 the answers are chair water almonds lemon waterin number two I think the reason is that the smell of hot sizzling food reaches you several metres away but to get the smell of cold food you have to go close because there is change in temperature when you have high temperatures the smell which is which is at a high rate because the diffusion between the smell of the food and the air is greater than when the temperatures are low so the diffusion is lowin question three I'm not sure of the answer but I'm thinking of matter occupies spacein question for when you're talking about the characteristics of particles of matter we know that matter is in three states that is solids liquids and gases in solids the particles are closely packed so when you heat them they vibrate vigorously in liquids the particles are loosely attached when you heat them it absorbs kinetic energy and makes the particles move farther apart from each other in gases the particles exist independently

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium