The _____________________ is the Earth's layer where you can see mountains and seas.

• Crust

• Mantle

• Outer core

• Inner core

The ___________________ of the Earth is a huge solid metal ball that is extremely hot.

• Crust

• Mantle

• Outer core

• Inner core

Rocks are made of one or more ___________________.

• food

• minerals

• bones

• shells

This mineral is rare, expensive and used for jewellery. This mineral is called __________________.

• Salt

• Diamond

• Calcite

__________________ are remains of living things that died very long time ago.

• Soil

• Rocks

• Fossils

• Pebbles

A ___________________ is a person who studies about rocks.

• Zoologist

• Dentist

• Meteorologist

• Geologist

Metamorphic rocks are rocks that are changed because of the ________________ and pressure over time.

• cold

• heat

• ice

• wind

The molten rock or liquid rock that reaches the Earth's surface is called _____________________.

• Lava

• Magma

• Fire

• Hot

________________ rocks are formed because the magma or lava cools down and harden.

• Metamorphic

• Sedimentary

• Igneous

________________ rocks are made up of pieces of rock called sediments that have been pressed together.

• Sedimentary

• Igneous

• Metamorphic