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Limestone Chalks Limestone is a hard sedimentary rock,
composed mainly of calcium carbonate or
dolomite. It is used as building material and
in the making of cement. It also used for
making chalks.

Make a list of some things in your house that are made up of rocks.
Write a few names here.

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Minerals

Minerals are inorganic substances that exist naturally on Earth. All the rocks
are made up of minerals. Minerals have different shapes, sizes and colours.
We use different minerals for different purposes.

Talc Talcum Powder China Clay Pot and Crockery

Talc is a mineral which we use to China clay is a mineral which we use
make talcum powder. to make pots and crockery.

Graphite Pencil Iron Iron Nail

Graphite is a soft greyish mineral Iron is a mineral that is used to make
which we use for making pencil iron nails.
leads.

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