science

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Across
  1. 3. the arrow
  2. 5. neither created nor destroyed in chemical reactions
  3. 8. numbers and letters
  4. 9. the small numbers
Down
  1. 1. on right side of equation
  2. 2. equal
  3. 4. big numbers u multiply
  4. 6. left side of the equation
  5. 7. not equal