NCERT Solutions for Class 2 Science Chapter 12 Rocks and Minerals

Earth is made up of different kinds of rocks. There are rocks on the surface of the earth. Some rocks are also found below the surface of the earth.

1. Rocks are of different colours.
2. Some rocks are very hard. Some rocks are soft and break easily. Diamond is hardest rock and lime stone is soft rock.
4. Some rocks are shiny while some are dull.

Different rocks have different uses like marble, granite, sandstone used in building construction. Graphite is also a soft rock. It is used to make lead of pencils.

All rocks are made up of minerals. They are made up of two or more minerals.

1. Diamond is the hardest mineral. It is used to make beautiful jewelry. It is also used to cut glass.
2. Talc is the softest mineral. It is used for making talcum powder.
3. Quartz is a common mineral. It is used in clocks and watches.
4. China clay is another important mineral. It is used to make pottery.

1. Earth’s surface is made up of land and water.
2. Land is made up of soil and rocks.
3. Rock is the hard part of the land.
4. Some rocks are hard and some are soft.
5. Marble, sandstone and granite are hard rocks.
6. Coal is a soft rock.
7. All rocks are made up of minerals.
8. Mica and quartz are two of the most common minerals that make up rocks.

1. The Taj Mahal in Agra is made of ______.
2. _______ a mineral is used to cut glass.
3. ______ is used in leads of pencils.
4. _______ is used to make glass and mirrors.

Answers:
1. Marble
2. Diamond
3. Graphite
4. Mica

Earth’s surface made up of rock and minerals.

Land is made up of soil and rocks.

Name of three hard rocks: Marble, Granite and diamond.

Coal is a soft rock. It is used in homes and factories to obtain heat.

Diamond is the hardest mineral. It is used in jewellery-making. It is also used to cut glass.