Crossword

123456789101112
Across
  1. 5. quantum bit
  2. 6. to be similar to or represent something
  3. 9. problems focused on making something as efficient as possible
  4. 12. not enough of something
Down
  1. 1. an extremely small piece of matter that is smaller than an atom
  2. 2. protection of something against threats
  3. 3. using a system of numbers that uses only 0 and 1
  4. 4. to create something by basing its form or appearance on something else
  5. 7. difficult to understand or find an answer to
  6. 8. at exactly the same time
  7. 10. change into secret code
  8. 11. _____ physics