Its All Relative

Edit Answers
1234567891011121314151617181920212223242526272829
Across
  1. 5. physical objects or particles that emit no detectable radiation of their own
  2. 10. an object that orbits another object in space
  3. 11. the basic building block from which galaxies are made
  4. 12. a famous mathematician who is known as the father of geometry
  5. 13. the rapid expansion of dense matter that marked the origin of the universe
  6. 15. mathematical study of shapes
  7. 16. also known as GPS, this system uses a device to determine the position of individuals or things
  8. 19. area of science that deals with space and the physical universe - people who work in this field are called astronomers
  9. 20. a description of some aspect of the natural world based on extensive observations, tests and reason
  10. 22. the temporary masking of one body (sun or moon) by another passing in front of it
  11. 23. ideas or conclusions based on a theory that does not yet have firm data or observations
  12. 24. the statement that two quantities are equal
  13. 25. the attractive force created by magnets - or the movement of electric charges
  14. 27. curved path around a star, planet or moon
  15. 28. the force that attracts anything with mass toward any other thing with mass
  16. 29. a measure of how much matter an object has
Down
  1. 1. something which occupies space and has mass
  2. 2. an object that orbits a star, is big enough for gravity to squash it into a roundish ball and much have cleared other objects out of its way
  3. 3. a device that generates an intense beam of light of a single color
  4. 4. a region of space having a gravitational field so intense that no matter or radiation can escape
  5. 6. describes the mathematical relationships between points, lines and other shapes on a flat plane
  6. 7. all things that exist throughout space and time
  7. 8. scientific study of the nature and properties of matter and energy
  8. 9. a scientist who studies physics
  9. 14. a theory showing that neither space nor time are constant
  10. 16. ripples in the fabric of space that are produces when masses undergo sudden acceleration
  11. 17. change in speed or direction of some object
  12. 18. an English physicist and mathematician that was famous for describing his laws of gravity
  13. 21. scientists who use mathematics or existing data to project what might happen in new situations
  14. 26. a designation for some spot given in terms of 3D coordinates in space