The rock which is made up of molten magma is

1

(a)

igneous

(b)

sedimentary

(c)

metamorphic

The innermost layer of the Earth is

1

(a)

crust

(b)

core

(c)

mantle

Gold, petroleum and coal are examples of

1

(a)

rocks

(b)

minerals

(c)

fossils

Rocks which contain fossils are

1

(a)

sedimentary rocks

(b)

metamorphic rocks

(c)

igneous rocks

The Deccan plateau is made up of

1

(a)

granite

(b)

clay

(c)

basalt

(d)

Both (a) and (c)

Any natural mass of mineral matter that makes up the ..... is called a rock.

1

(a)

Earth's crust

Igneous and sedimentary rocks can change into ..... rocks.

1

(a)

metamorphic

The Red Fort is made of.........

1

(a)

red sandstone

The Taj Mahal is made of...........

1

(a)

white marble

Minerals are naturally occurring substances which have certain ..... properties and ..... composition.

1

(a)

physical, definite chemical

Name the main mineral constituents of the continental mass.

2

(a)

The continental mass are made up of silica and alumina. It is thus called SiAl (Si-Silica and AI-Alumina)

What is the radius of the core of the Earth?

2

(a)

The radius of the core is 3500 km.

What is the Earth's crust made up of?

2

(a)

The Earth's crust is made of different types of rocks.

What are igneous rocks?

2

(a)

When the molten magma cools, it becomes solid. Rocks thus formed are called igneous rocks. e.g. basalt.

Name the constituents of oceanic crust.

2

(a)

The oceanic crust mainly consists of silica and magnesium, it is therefore called SiMa (Si-Silica and Ma-Magnesium).

What are the three layers of the Earth?

2

(a)

Name three types of rocks

3

(a)

What are the uses of rocks?

3

(a)

What are minerals? How are they useful for mankind?

3

(a)

Differentiate between crust and core

3

(a)

Collect pictures of some monuments and find out which are the rocks used to build them. Three pictures have been collected for you

3

(a)

What are the minerals found in your state? Collect some samples to show in your class.

3

(a)

Explain basic features of the interior of the earth.

5

(a)

Observe the given picture carefully and answer the questions that follow
(a) What is the uppermost layer of the Earth?
(b) What is the mineral constituent of the oceanic crust?
(c) What is the innermost layer of the Earth?

5

(a)