W58

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Across
  1. 1. Influential scientific work on physics and motion.
  2. 3. Force that attracts objects toward one another.
  3. 8. Instrument used to view tiny objects.
  4. 9. Scientist who improved the telescope and supported heliocentrism.
  5. 11. Astronomer who described planetary motion.
  6. 13. Continuous movement of blood through the body.
  7. 14. Path followed by an object around another object.
  8. 15. Change in position over time.
Down
  1. 2. Tendency of an object to resist changes in motion.
  2. 4. Instrument used to observe distant objects.
  3. 5. Describing an Earth-centered model of the universe.
  4. 6. Scientist who authored Principia Mathematica.
  5. 7. Scientist who formulated laws of motion and gravity.
  6. 10. Reliance on observation and experience.
  7. 12. Reliance on reason as a source of knowledge.