Reading Explorer Unit 4B

What is the name for a person who travels into space?

• astrology

• astrologer

• astronaut

• astronomer

Which word is NOT a synonym?

• establish

• form

• discover

• make

• create

What is Earth's closest neighbor in space?

• Venus

• Mars

• the sun

• the moon

Why does Robert Zubrin think humans should make Mars our first space colony?

• to learn how to live away from Earth

• to protect against the aliens on Mars

• to benefit people on Earth through new scientific discoveries

• in case something bad happens to Earth

Why does Elon Musk think humans should colonize Mars?

• to learn how to live away from Earth

• to protect against the aliens on Mars

• to benefit people on Earth through new scientific discoveries

• in case something bad happens to Earth

"Lunar" is an adjective that means related to

• the sun.

• the moon.

• Mars.

• Venus.

"Solar" is an adjective that means related to

• the sun.

• the moon.

• Mars.

• Venus.

What are reasons NOT to send humans into space?

• It's dangerous.

• It's too expensive.

• There's nothing to learn there.

• No one wants to go.

Which situation illustrates the word "despite"?

• You did something you were warned not to do.

• You did something because you were told to do it.

• You did not do something because you were warned not to.