* Match the words or phrases with their definitions.
Words or Phrases | Definitions |
……1. rocket /ˈrɒkɪt/ ……3. mission /ˈmɪʃn/ ……5. astronaut /ˈæstrənɔːt/ ……7. spacewalk /ˈspeɪswɔːk/ ……9. microgravity /ˈmaɪkrəʊˈɡrævəti/ | a. a zero-gravity flight b. the state of weightlessness c. a programme of space flights d. the height of something above the sea e. with conditions that are suitable for life to exist f. a person who has been trained to work in space g. an act of moving around in space outside a spacecraft h. a piece of rock from outer space that hits the earth’s surface i. a large cylinder-shape object that moves very fast by forcing out burning gases j. the science that studies the universe and its objects such as the moon, the sun, planets, and stars |