NCERT Book Class 6 Science Chapter 3 Separation of Substances

3 Separation of Substances

I
n our daily life, there are many
instances when we notice a substance
being separated from a mixture
of materials.
Tea leaves are separated from the
liquid with a strainer, while preparing
tea (Fig. 3.1).

Fig. 3.2 Butter is taken out by churning milk or
curd
than mango or guava? Imagine you are
given a glass of sand with salt mixed in
Fig. 3.1 Separating tea leaves with a strainer
it. Impossible, even to think of
Grain is separated from stalks, while
separating salt from this mixture by
harvesting. Milk or curd is churned to
picking out grains of sand by hand!
separate the butter (Fig. 3.2). We gin
cotton to separate its seeds from
the fibre. But, why would we need to
Perhaps you might separate substances like this
have eaten salted at all, is what Paheli wants
daliya or poha. If you to know.
found that it had
chillies in it, you may
have carefully taken
them out before eating.
Activity 1
Suppose you are given a basket In Column 1 of Table 3.1, are given a
containing mangoes and guavas and few processes of separation. The purpose
asked to separate them. What would you of separation and the way separated
do? Pick out one kind and place them components are used is mentioned in
in a separate container, right? Column 2 and 3 respectively. However,
Seems easy, but what if the materials the information given in Columns 2 and
we want to separate are much smaller 3 is jumbled up. Can you match each

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