Give two reasons to justify:
(a) water at room temperature is a liquid.
(b) an iron almirah is a solid at room temperature.

(a) Water is a liquid at room temperature because:
  1. Water has a fixed volume but no fixed shape.
  2. Water flows freely.
(b) An iron almirah is solid because
  1. The iron almirah has a fixed shape and volume.
  2. Particles of the iron almirah do not flow freely and have a fixed position.
[Extra information: Anything that occupies space and has mass is known as Matter. Matter exists in three forms – solid, liquid, and gas. Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases.

Solids have a definite shape and volume as the atoms in a solid are tightly packed, usually in a regular pattern.

Liquids have a definite volume, but take the shape of a container, as the atoms in liquid are close together with no regular arrangement.

Gases have no definite shape or volume. The atoms in the gas are well separated with no regular arrangement.


Simply Easy Learning

Updated on: 15-Mar-2023


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