Space Vocabulary
Planets
Auxiliaries for Emphasis
First Conditional (Space!)
100

The natural satellite that orbits Earth.

moon

100

The hottest planet in our solar system due to its runaway greenhouse effect.

venus

100

Emphasize that we need a telescope to see the craters on the moon.

need 

100

If an astronaut ______ (float) away from the spacecraft, they ______ (need) to use their jetpack.

floats / will need

200

A cloud of gas and dust in space, often called a "star nursery."

nebula

200

The largest planet in our solar system, a gas giant with a famous Great Red Spot.

Jupiter

200

Emphasize that the launch was successful, despite the weather. 

 was 

200

We ______ (have) a great view of the meteor shower tonight if the clouds ______ (clear).

will have/ clear

300

A small rocky body that orbits the sun, often found in a belt between Mars and Jupiter.

asteroid
300

This planet is known for its spectacular and prominent ring system

saturn

300

Correct this sentence for emphasis: "I really am want to be an astronaut."

I really do want to be an astronaut/ I do really ...

300

If they ______ (not/find) water on Mars, establishing a colony ______ (be) much more difficult.

do not find / will be

400

The hypothetical boundary around a black hole from which nothing can escape.

event horizon

400

The only planet in our solar system that rotates on its side (a 98-degree tilt).

uranus

400

Emphasize the surprise: "She has seen a shooting star before!"

 has

400

The satellite ______ (burn up) in the atmosphere if it ______ (not/boost) into a higher orbit.

will burn up / is not boosted

500

The theory that explains the origin of the universe as a rapid expansion from a single point.

big bang theory

500

This dwarf planet was reclassified from a planet in 2006 and resides in the Kuiper Belt.

pluto

500

Emphasize the importance in this sentence: "You must remember to check the oxygen levels."

must

500

What ______ (you/do) if you ______ (encounter) extraterrestrial life?

will you do / encounter