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CBSE Class 3 EVS Worksheet

Rocks and Soil

1.
What are the characteristics of marble?
2.
Fill in the blanks: A rock is usually made up of one or more _______.
A) Chalk B) Marble C) Minerals D) Granite
3.
What is a loom?
4.
Give some examples of impermeable rocks?
5.
How is soil formed?
6.
Fill in the blanks: ______ can be scratched with a steel nail.
A) Sandstone B) Pumice C) Granite D) Flint
7.
Why is marble used for statues or grand buildings?
8.
Fill in the blanks: ______ rock forms when magma and lava cool and hardens.
A) Igneous B) Sedimentary C) Metamorphic D) Diamond
9.
What is soil made up of?
10.
Fill in the blanks: Rocks are of ____ types.
A) Two B) Four C) Five D) Three
11.
State TRUE/FALSE: Quartzite is igneous rock.
A) true B) false
12.
Why are soils felt different?
13.
Fill in the blanks: Fossils are mostly found in _____ rock.
A) Igneous B) Sedimentary C) Metamorphic D) Diamond
14.
State TRUE/FALSE: Sedimentary rock is created from lava.
A) true B) false
15.
Give some examples of igneous rocks?
16.
Fill in the blanks: _____is made up from little bits of rock.
A) Sand B) Marble C) Minerals D) Granite
17.
Fill in the blanks: _____ splits into thin sheets.
A) Chalk B) Marble C) Slate D) Granite
18.
What happens to limestone when heated and pressurised?
19.
Where are igneous rocks found?
20.
State TRUE/FALSE: Slate is useful for making roofing tiles.
A) true B) false

CBSE Class 3 EVS Worksheet

Rocks and Soil

Answers

1.
Marble has an attractive texture and colour and can be cut and polished. 
2.
Option C

3.
Loom is a mixture of sand and clay.
4.
Marble, slate etc are impermeable rocks.
5.
Millions of years ago, when there was no soil but only rocks were present, rocks broke down due to rain, heat, pressure etc into small pieces called weathering. Plants and mosses started growing on it and after their death, the decaying material on the rocks formed the soil.
6.
Option A

7.
Marble used for statues or grand building because it has attractive textures and colours.
8.
Option A

9.
Soil is mainly made up of rocks and humus.
10.
Option D
11.
Option B

12.
The soil of different places have different colours and feel different because they are made of different rocks.
13.
Option B
14.
Option B

15.
Pumice and granite are igneous rocks.
16.
Option A
17.
Option C

18.
When limestone is heated and pressurised, it forms marble, a metamorphic rock.
19.
Igneous rocks are found in the volcanic region.
20.
Option A

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