ICT LESSON TEMPLATE

STATES OF MATTER

Classification of matter

Matter can be classified into three states 1. Solid 2. Liquid 3. Gas

Examples of various states of matter

Solid : Stones, chalk

Liquid : Salt solution, Water, Kerosene

Gas : Oxygen, Neon

Molecular arrangement in solids

Discussion points

1.what do you observe?

2.Is any attractve force between the molecules?

3.What about the distance between the molecules?

1.molecules are closely packed

2.force of attraction is high

3.molecular distance is less

Consolidation

In solid state molecules are closely packed. The attractive force between the molecules is vey high and the distance between the molecules is very negligible.

Molecular arrangement in liquids

Discussion points

1.what do you observe?

2.Is the molecular force between the molecules more or less than solid state?

3.what about the distance between the molecules?

1.molecules are loosely arranged.

2.distance between the molecules is more than solid state

3.attractive force is less than solid state

Molecular arrangement in gases

Discussion points

1.What do you observe?

2.Is the attractive force between the molecules more or less than liquid state?

3. What about the distance between the molecules?

1.molecules are very loosely arranged

2.attraction between the molecules is very less

3.distance between the molecules is very high

Consolidation

In gaseous state molecules are very loosely arranged. The distance between the molecules is more than liquid state.So the attractive force between the molecules are less than liquid state.