Light energy

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Across
  1. 4. A mirror that bulges out is called a ______ mirror (adj)
  2. 5. The opposite of flat (adj)
  3. 7. Light bends as it passes through a substance (verb)
  4. 10. A mirror that sinks inwards is called a ______ mirror (adj)
  5. 12. The flat top of a table can also be called the ______ of the table (noun)
  6. 14. To make something appear bigger (verb)
  7. 15. Describes an image that looks strange, unclear or blurry (adj)
  8. 16. A straight thing changes to become a curve (verb)
  9. 17. Light bounces off a surface (verb)
  10. 19. Another word for a corner. Can be 90 degrees, 180 degrees etc (noun)
Down
  1. 1. Go up and down, like a ball (verb)
  2. 2. Another word for backwards (adj)
  3. 3. The opposite of inwards is ______ (adj)
  4. 6. opposite of upwards is ______ (adj)
  5. 8. An activity to test or demonstrate scientific facts (noun)
  6. 9. The opposite of straight (adj)
  7. 11. Another word for look like (verb)
  8. 13. A line of light is also called a WHAT (noun)
  9. 18. An object (usually a piece of glass) that bends light (noun)