blue group :P

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Across
  1. 4. the study of myths
  2. 6. what you use to see small objects
  3. 7. a particular system of ________
  4. 8. the __________ features of an area
Down
  1. 1. one thousandth of a meter
  2. 2. what you use to hear someones heartbeat
  3. 3. a zodiac birth chart
  4. 5. realating to heat