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 The most common
mineral found on Earth is
called quartz.

Ruby Emerald Diamond

Some precious stones like ruby, diamond

and emerald are used to make jewellery.

Let’s
Revise

 Rocks are the solids mineral that are naturally
occur in our environment.

 Granite, marble and sandstone are hard rocks.
 All rocks are made up of minerals.

Points to Remember

Environment : Our surrounding
Jewellery : Ornaments worn by women

E XE R C I S E

A. Tick () the correct answer.
1. Limestone is a soft/hard rock.
2. Our earth is mainly made up of plastic/rock.
3. Talc is a rock/mineral.
4. Granite is a hard/soft rock.
5. Marble is used to make floors/pottery.

B. Write ' T ' for true and ' F ' for false statements.
1. Mountains are made up of minerals.
2. Limestone is a soft rock.
3. Marble is a soft mineral.
4. Red Fort is made up of white marble.

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