Grade 7 - Inside our earth

The upper most layer of the earth's surface is called ____

• Crust

• Mantle

• Core

Igneous rocks are also called as ____

• Sediment

• Primary rock

• Metamorphic rock

____ is the inner most layer of the earth.

• Mantle

• Crust

• Core

When molten magma cools deep inside the earth is known as ____

• Extrusive igneous rock

• Igneous rock

• Instrusive igneous rock

The main mineral constituents of the continental mass are ____

• Silica and magnesium

• Silica and aluminium

• Silica and nickel

Thinnest layer of earth is called ___

• Mantle

• Core

• Crust

There are ___ major types of rock.

• 5

• 3

• 4

Fossils are remains of dead plants and animals.

• True

• False

The word igneous is derived from a Latin word means.

• Fire

• Stone

• Rock

The depth of mantle is 2900 km.

• True

• False