1. Particulate nature of matter

Question 0

Describe the process of boiling

Answer 0

Particles gain kinetic energy and move faster
They overcome the force of attraction holding them together and spread apart
They move rapidly in all directions

Question 1

describe the process of melting

Answer 1

Particles gain energy
They vibrate faster and overcome the force of attraction between them
They break away from their fix position
Energy is absorbed

Question 2

Describe the process of freezing

Answer 2

Particles lose kinetic energy and move more slowly until they no longer have enough energy to move freely
Particles settle into fixed position

Question 3

Describe and explain diffusion

Answer 3

Random movement of gas or liquid particles, which leads to them spreading out
Particles mix / spread by colliding randomly with each other and bounding off in all direction