Motion and Chemistry

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Across
  1. 2. a force that stops or slows down an object (f________)
  2. 3. acid + metal --> salt + h____________
  3. 4. name of compound CuO
  4. 5. Newton's law number which describes inertia (f_______)
  5. 6. substance made of one type of atom only (e____________)
  6. 7. element with formula Cl
  7. 11. substance made of 2 or more different atoms (c____________)
  8. 14. the tendency of an object to keep its motion (i___________)
  9. 18. measured in m/s2 or ms-2 (a______________)
  10. 19. scientist with 3 laws of motion (N______)
  11. 21. speed is measured in __________ per second
  12. 22. forces are measured in N_________
Down
  1. 1. the one thing that you change in an experiment (i________ variable)
  2. 4. acid + carbonate --> salt + water + c_______________
  3. 8. the things that need to be the same in experiments (c_______ variables)
  4. 9. Newton's Law that says force depends on acceleration and mass (s_______)
  5. 10. force is calculated by m______ x acceleration
  6. 12. what you measure in the results for an experiment(d_________ variable)
  7. 13. speed is calculated by the formula distance divided by __________
  8. 15. Newtons law number that says 'Forces have an equal and opposite force'(t____)
  9. 16. element with formula Fe
  10. 17. another name for a chemical change (r__________)
  11. 20. acid + base --> salt + w_____________