Question

Enlist four examples of solids and gases each.

Answer 1

Anything that occupies space and has mass is called matter. The three forms of matter are:

• Solids
• Liquids
• Gases

The properties of solids are:

1. Solids have a definite shape, size, and volume.
2. They are rigid. They do not possess the property of fluidity.
3. They have high densities and are heavy.
4. They have low compressibility.
5. Rate of diffusion in solids is very very low or negligible.
6. The particles of solids are closely packed hence they do not move but keep on oscillating around their mean positions.
7. They have any number of surfaces.

The properties of gases are:

1. Gases have indefinite shape, size, and volume.
2. They have maximum fluidity.
3. They show the least rigidity.
4. They possess low densities as compared to solids and liquids.
5. They are highly compressible due to the presence of large interparticle space.
6. They show maximum diffusion due to the continuous movement of particles of gases.
7. They occupy the shape and volume of the container in which they are kept.

Four examples of solids are glass, metals, wood, and ice.

Four examples of gases are air, natural gas, steam, and nitrogen.