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Across 7. The way the planets move. 8. The curved path of a celestial object. 11. The force that attracts an object towards the sun. 12. The shape a planet takes if its attraction to the sun followed the inverse square of the distance between them. 13. Three laws described on Principia by Newton. 14. Occupation of his father.

Down 1. The type of telescope Newton designed and built. 2. Where he went to university. 3. Newton's professional rival who accused him of plagiarism. 4. City where he died. 5. Country where he was born. 6. His mother's name. 8. What Newton studied with his microscope. 9. Book he published in 1687. 10. What Principia was written about and what Newton researched.