Properties of Substances

Question 1

Define Matter

Answer 1

Being made of particles that are continuously moving and interacting.

Question 2

Classify Matter

Answer 2

Being made of Solid, Liquid or Gas

Question 3

Describe the properties of matter using the particle theory

Answer 3

> All matter is formed of tiny particles.
The particles are constantly randomly moving about.
The particles can be arranged regularly or randomly.
The particles are held together by weak or strong forces.
As temperature increases, the particles move faster

Question 4

What is the process in which liquid turns into solid

Answer 4

Freezing or Solidification

Question 5

What is the process in which solid turns into liquid

Answer 5

Melting

Question 6

What is the process in which liquid turns into gas

Answer 6

Evaporation or Boiling

Question 7

What is the process in which gas turns into liquid

Answer 7

Condensation ✨✨✨

Question 8

What is the process in which solid turns into gas

Answer 8

Sublimation

Question 9

What happens when you add heat energy to particles

Answer 9

They speed up and start rolling over one another and then start to detach from one another and speed up even more.