2. The Kinetic Theory of Matter

Question 1

State what is meant by the term ‘matter’

Answer 1

1. Matter is anything that takes up space and has mass.
2. Matter is made up of very small particles called ATOMS or MOLECULES.

Question 2

What is everything made of?

Answer 2

Atoms or molecules

Question 3

What is the Kinetic Theory of Matter?

Answer 3

From experimental work, scientists have built up a picture of atoms and molecules in solids, liquids and gases.

Kinetic – to move
Matter – atoms / particles / molecules

Question 4

Name the three states of matter

Answer 4

1. Solid
2. Liquid
3. Gas

These are all made up of atoms or molecules

Question 5

What are the three forms of H2O?

Answer 5

• Ice (Solid)
• Water (Liquid)
• Steam (Gas)

Question 6

Describe: SOLIDS

Answer 6

1. Volume – does not change
2. Shape – does not change
3. Flow – No

Question 7

Describe: LIQUIDS

Answer 7

1. Volume – does not change
2. Shape – changes
3. Flow – Yes

Question 8

Describe: GASES

Answer 8

1. Volume – changes
2. Shape – changes
3. Flow – Yes

Question 9

Draw three diagrams to show the packing arrangement present in the three states of matter.

Answer 9

Question 10

Why do solids, liquids and gases behave differently?

Answer 10

The molecules are arranged and move differently in solids, liquids and gases.

Question 11

Can you learn off the following table?

Answer 11