Hhh

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Across
  1. 4. - repeated design
  2. 5. → no charge
  3. 8. → substances combined
  4. 9. → force per area
  5. 10. → ‹ modern machines
Down
  1. 1. → study of substances
  2. 2. → find out
  3. 3. → correctly
  4. 6. → pure substance
  5. 7. → + charge