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VOCABULARY LIST
These are the words and phrases we will be focussing on in the vocabulary practice below. Which words/phrases do you know already? Are there any that you've never seen before?

Nouns
✤asteroid ✤astronaut ✤atmosphere ✤cosmos ✤crater ✤debris ✤Earth ✤exploration ✤explorer ✤galaxy ✤gas ✤gravity ✤horizon ✤launch ✤meteor ✤moon ✤ocean ✤orbit ✤outer space ✤planet ✤radiation ✤rocket ✤satellite ✤simulator ✤solar system ✤space ✤spacecraft ✤space shuttle ✤space station ✤surface ✤universe ✤weightlessness

Adjectives
✤commercial ✤cosmic ✤extreme ✤gravitational ✤horizontal ✤inevitable ✤lunar ✤meteoric ✤outer ✤solar ✤terrestrial ✤toxic ✤uninhabitable ✤universal ✤unmanned

Verbs
✤acclimatise ✤colonise ✤explore ✤float ✤orbit ✤propel ✤rotate ✤sustain ✤simulate ✤undergo

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SHOW YOUR PROGRESS
Before you do any of the exercises below, make sure you have completed one or both of the tasks in the Show Your Progress PDF (download it below). Remember to keep a record of how you answered the questions.

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VOCABULARY PRACTICE
Work through these exercises in this order to learn and practice the above vocabulary.

1. Exercise I

2. Exercise II

3. Exercise III

4. Exercise IV — Word building

5. Exercise V

6. Exercise VI

7. Exercise VII

8. Exercise VIII — Pronunciation

Now go to the next lecture in this section for some practice in IELTS listening (Section Three).

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Note: If you would like to discuss anything related to the Vocabulary Practice in this theme of The Planets and Space with other students, click here.