EZ-PHYSICS CROSSWORD PUZZLE CHALLENGE (FORM 1)

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Across
  1. 3. Instrument used in submarines to observe sea surface
  2. 4. Ability to obtain a value closest to the actual value
  3. 5. Consistent errors obtained from measuring instrument
  4. 7. Measurement in olden times
  5. 8. S.I unit for length
  6. 10. Mass per unit volume of the material
  7. 12. A mirror that magnify the image to looks bigger and closer
  8. 14. Greek scientist who discovered the water displacement method
Down
  1. 1. Error that occurs when reader's eyes not perpendicular to reading scale
  2. 2. When light travels through two mediums of different densities
  3. 3. Characteristics of image formed is laterally inverted and upright
  4. 6. Widely used in clinics to measure temperature
  5. 9. To convert metre to kilometre,we need to ___ 1000
  6. 11. Prefix that used 'n' as symbol
  7. 13. S.I unit for electric current