So You Want to Go to Mars?

What does the word "barren" mean in this sentence?

The land was completely dry and barren, nothing grew there.

• Relating to growing plants without soil.

• without crops

• lacking vegetation

• cracked or broken

What does the word "colony" mean in this sentence?

The new colony made rules that everyone would have to follow.

• a city in the United States.

• a group of ants or other insects.

• a county that is part of a state.

• a group of people living in a new territory who maintain relations with their place of origin.

Which sentence uses the word "compatibility" correctly?

• The compatibility of the two astronauts was not good.

• I was compatibility with the other astronaut.

• The compatibility feeling of the astronaut was very good.

• Are you compatibility with him?

What does the word "embark" mean in this sentence?

We will embark on our journey tomorrow.

• To stop doing something

• To leave an area

• To get on a ship, airplane, or other vehicle, or to start something new.

• To come into a room

Which sentence uses the word "feat" correctly?

• The man will perform a feat of strength after dinner.

• The shoes do not fit my feat very well.

• The boys had to run 20 feat and then climb a pole to win the prize.

• What feats of laughter will we experience tonight?

Which sentence uses the word "gravity" correctly?

• The gravity will force him to leave the surface of the moon.

• The gravity on the moon is less than on the Earth.

• The gravity of the room was too much.

• There is gravity under the chair and on the table.

What is the meaning of the word "habitat" in this sentence?

The bird's habitat is rapidly disappearing, so they will have to find a new place to live.

• The structure of a house or building.

• The place a living thing sleeps at night.

• The natural home or environment of a living organism.

• A place without any plants or animals.

Which sentence uses the word "hydroponic" correctly?

• The hydroponic plant was placed in a pot full of dirt.

• The hydroponics were growing quickly.

• The hydroponic committee agreed to use soil to grow the plants.

• The plants were grown in a hydroponic container.

What does the word "mass" mean in this sentence?

The mass of Earth is greater than the mass of Mars.

• The weight of an object.

• the amount of matter or "stuff" in an object.

• The gravitational pull of an object

• The speed at which an object moves.

Which sentence uses the word "orbit" correctly?

• Why are you orbiting around the room?

• The orbits of the stars are about the same.

• Some orbits are used to measure distance.

• It takes Mars about twice as long to complete its orbit around the sun as it does the Earth.