unit 4

123456
Across
  1. 2. doing experiments, and the development of theories to describe the results of these activities:
  2. 3. written artistic works, especially those with a high and lasting artistic value:
  3. 5. sports
  4. 6. something that happened or ended a long time ago and is not important now,
Down
  1. 1. the study of the systems and processes involved in the world's weather, mountains, seas, lakes,
  2. 4. learning abc