Renaissance Crossword

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Across
  1. 2. The science of constructing objects.
  2. 4. Descovered the theory of Heliosyncracy.
  3. 7. Many people studies this subject,it involves symbols and numbers.
  4. 8. The science of building.
  5. 10. Synthematized knowldge derived from observation.
Down
  1. 1. Copernicus' theory.
  2. 3. He agreed with Copernicus' theory of the earth revolving around the sun.
  3. 5. First astronomer to theorize the Earth moved around the sun.
  4. 6. Designed the first helicopter.
  5. 9. Device used to look at the stars.