SCIENCE!!!!!!!!

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Across
  1. 2. Explains what cannot be directly observed
  2. 4. A guess of what you think may happen
  3. 7. Matter made of all the same kind of atoms
  4. 10. Cannot be sensed or measured
  5. 12. Two or more atoms joined together in a certain way
Down
  1. 1. Matter made up of more than one kind of element
  2. 3. Object may be both sensed and measured
  3. 5. A solid, liquid, or gas and takes up space
  4. 6. The way scientists solve problems or find the answer to questions
  5. 8. A decision or an answer to a question
  6. 9. A test to solve a problem or answer a question
  7. 11. The building blocks of all matter