Who Was Albert Einstein?

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Across
  1. 2. very smart
  2. 4. power
  3. 6. something asked
  4. 8. where albert was born
  5. 10. smallest particle
Down
  1. 1. speed you see depends on where you are
  2. 3. the study of natural things
  3. 5. an explosive
  4. 7. a battle
  5. 9. science of quantities