Tung

Which of these is the largest planet in the Solar System?

• Earth
• Mars
• Mercury
• Jupiter

Which word means "a person who travels in a spacecraft"?

• Scientist
• Pilot
• Astronaut
• Engineer

What do you call the machine that travels into space?

• Car
• Plane
• Spaceship
• Boat

What is the word for "the natural satellite that orbits the Earth"?

• Star
• Planet
• Moon
• Sun

What is the term for "a vehicle designed to explore the surface of a planet"?

• Satellite
• ocket
• Rover
• ubmarine

Which word describes "a large system of stars held together by gravity"?

• Galaxy
• Asteroid
• Comet
• Meteor