Unit 4 key words

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Across
  1. 2. is a series of connected links which are typically made of metal.
  2. 6. (often denoted by the cross symbol "×", by a point "·" or by the absence of symbol) is one of the four elementary, mathematical operations of arithmetic; with the others being addition, subtraction and division.
  3. 7. a set of interacting or interdependent component parts forming a complex/intricate whole
  4. 8. somebody who studies physics
  5. 10. Academic results about something
  6. 14. can be used to indicate"basic"
  7. 15. a confusing problem
  8. 17. statistics (usually, mean or variability) of weather, usually over a 30-year interval.
  9. 18. not gentle
  10. 19. not violent
  11. 21. is equal to "therefore"
Down
  1. 1. science about living things
  2. 3. Gravity is responsible for many of the structures in the Universe
  3. 4. can be used to describe the earth
  4. 5. meaning "vapour",andσφαῖρα (sphaira), meaning "sphere") is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body.
  5. 7. is an artificial object which has been intentionally placed into orbit.
  6. 9. a Subject needs both knowledge of Physics and Math
  7. 11. no longer exist
  8. 12. means difference
  9. 13. is not good for something
  10. 16. is a chemical element with symbol C and atomic number 6. On the periodic table, it is the first (row 2) of six elements in column (group) 14,
  11. 20. means "live"