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Inside our earth

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

What forms the oceanic crust?

a)

Silica and alumina

b)

Silica and magnesium

c)

Nickel and iron

d)

None of the above

2.

What is the name of the process in which rocks change into other types?

a)

Rock cycle

b)

Weathering

c)

Both A and B

d)

None of these

3.

What is the core made up of?

a)

Nickel and iron

b)

Silica and alumina

c)

Silica and magnesium

d)

Nickel and ferrous

4.

What are the tiny rocks that form sedimentary rocks called?

a)

Sediments

b)

Pieces

c)

Rocks

5.

Rocks which contain fossils are

a)

Igneous

b)

Metamorphic

c)

Sedimentary

6.

The rock which is made up of molten magma is

a)

Igneous

b)

Metamorphic

c)

Sedimentary

7.

The thinnest layer of the Earth is the __________

a)

crust

b)

mantle

c)

outer core

d)

inner core

8.

The average radius of the mantle is about

a)

2300 km

b)

2900 km

c)

3500 km

d)

3900 m

9.

Granite, Chalk, clay and salt are examples of ___________

a)

rocks

b)

minerals

c)

fossils

d)

metals

10.

Marble is a type of ___________ rock

a)

metamorphic

b)

igneous

c)

expensive

d)

sedimentary

11.

Ocean crust mainly consists of_________

a)

silica and magnesium

b)

silica and alumina

c)

nickel and iron

d)

all of the above

12.

When molten Magma comes on earth's surface and coolen down rapidly it becomes

a)

Sedimentary rocks

b)

Metamorphic rock

c)

Intrusive igneous rock

d)

Extrusive igneous rock

13.

Tajmahal is made of

a)

Sandstone

b)

Marble

c)

Granite

d)

Basalt

14.

Red fort is made by

a)

Limestone

b)

Sandstone

c)

Granite

d)

Basalt

15.

Basalt is a type of .....

a)

Intrusive Igneous rock

b)

Metamorphic rock

c)

Sedimentary rock

d)

Extrusive igneous rock

16.

After metamorphism limestone changes into

a)

Slate

b)

Sandstone

c)

Marble

d)

Granite

17.

The core has a radius of about

a)

3100 km

b)

3300 km

c)

3500 km

d)

2900 km

18.

Deccan plateau is made up of

a)

Basalt rocks

b)

Sandstone

c)

Marble

d)

Granite

19.

Gold, petroleum and coal are examples of

a)

Rocks

b)

Minerals

c)

Fossils

d)

None of these

20.

From which of the following word the metamorphic word arrive?

a)

French

b)

Latin

c)

Greek

d)

Japanese

21.

The chemical name for Iron is :

a)

Fe - Ferrous

b)

Fe - Feride

c)

Iron oxide

d)

Steel

22.

Igneous is a _____ word meaning ______

a)

Latin, fire

b)

Greek, Stones

c)

French, Water

d)

Latin, Hot air

23.

Sedimentary is a word derived from _____ word ______

a)

Greek, sedentum

b)

Latin, sedentum

c)

French, Sedimenta

d)

Spanish, Sedenta

24.

Which of the following is a sedimentary rock?

a)

Granite

b)

Obsidian

c)

Limestone

d)

Marble

25.

Which process is necessary for the formation of igneous rocks?

a)

erosion

b)

deposition

c)

metamorphism

d)

solidification