WAY TO 100

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Across
  1. 2. a group of atoms
  2. 5. what you study in chemistry
  3. 7. undoable
  4. 8. what you teach
  5. 10. study of chemicals
Down
  1. 1. appearance
  2. 3. cant undo
  3. 4. 1 element
  4. 6. what makes up molecules
  5. 9. 2 elements