Page 53 - ScienceStd4

States of matter

There are various states of matter. In this section, you will learn
about the three states of matter, which are solid, liquid and gas.

FOR ONLINE READING ONLY
Solid

A solid is a state of matter that is firm and hard. Solids have
a definite shape. Solids include stones, firewood and cooking
pots as shown in Figure 1.

Stones Cooking pots Firewood

Figure 1: Examples of solid matter
Liquid

Liquid has no fixed shape but takes the

shape of the container it is placed in. When
you pour water into a container, the water
takes up space and takes the shape of
that container. Examples of liquids include

water, juice and soda. Figure 2 shows a
liquid being poured into a glass

Figure 2: Liquid being
poured into a glass

Gas

Gas has no fixed shape and is usually lighter than solids and

liquids. An example of a gas is air. Air is stored in solid objects.

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