Unit: 5 Calling Planet Earth

Complete the sentences with a word from the box.

There are 8 _____________ in the solar system.

• galaxy

• solar system

• satellites

• planets

Complete the sentences with a word from the box.

The __________ contains billions of stars and suns.

• galaxy

• solar system

• satellites

• planets

Complete the sentences with a word from the box.

Not all planets have _______________________ like the Earth, believe it or not – objects float on some other planets.

• space

• suns

• satellites

• gravity

Complete the sentences with a word from the box.

__________________travel to space to try to explore the different regions out there and to learn new information.

• Satellites

• Astronauts

• Planets

• Gravity

Complete the sentences with a word from the box.

Governments and space programmes send _______________________ to discover new things.

• satellites

• astronauts

• planets

• gravity

Complete the sentences with a word from the box.

A black or brown rock found in nature and used to create energy _______.

• petrol

• oil

• coal

• gravity

Complete the sentences with a word from the box.

Giant size is _______.

• very big

• tiny

• great

• powerful

Complete the sentences with a word from the box.

___________coming from the internal heat of the earth

• lexical

• chemical

• essential

• geothermal

Complete the sentences with a word from the box.

finish and be used up

• run on

• give up

• run out

• break up

Complete the sentences with a word from the box.

___________ are mountains that have hot rock pieces inside them

• Peaks

• Oases

• Sand Dunes

• Volcanoes