Vocabulary List #2

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Across
  1. 3. try out for a role in a play
  2. 4. study of objects in space
  3. 5. a person who is trained to travel into outer space
Down
  1. 1. Enormous, Immense
  2. 2. able to be heard
  3. 3. branch of physics dealing with objects in space
  4. 4. a group of people who listen or watch a performance
  5. 6. listener