Choose the correct answer: The ............... is a group of planets and other bodies revolve around the sun.

• Solar system

• stars

• planets

• moon

Choose the correct answer: A ................is a tool we use it to see the far things in space.

• spacecraft

• universe

• galaxy

• Telescope

Choose the correct answer: An ............... is a building or place for observation to see stars, planets.

• spacecraft

• telescope

• Observatory

• galaxy

The ............. are small spots or marks.

• disk

• vast

• dwell

• Specks

The ............ is a dark body that seems shiny at night due to the sunlight.

• Moon

• sun

• comet

• stars

The .............is a person who studies a lot about the sun, moon, planets and stars.

• Archaeologist

• Astronomer

• Teacher

• Scientist

A ................ is a space craft without people that collects information from the space.

• Space craft

• Orbit

• Space probe

• crater

The................ is the central part of an object.

• distance

• diameter

• Core

• crater

The .................. is the outside part of something or the top of the water.

• Core

• Surface

• Distance

• Matter

The .................. are large holes in the ground.

• Core

• Unique

• Craters

• Gravity