9. 8 1 20 5. 20 1 2 1 20 1

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Across
  1. 4. is a guess of what you think will happen
  2. 5. when two or more atoms are mixed together
  3. 6. explains what cannot be seen
  4. 7. is the way scientist solve problems or solve questions
  5. 8. is matter made up of one or more kind of element
  6. 9. an object may be sensed or measured
Down
  1. 1. is a test to solve a problem or solve a question
  2. 2. matter made of the same kind of atoms
  3. 3. What scientist use for the center of the earth
  4. 5. is a solid liquid or gas that takes up space.
  5. 8. is a decision to end or answer a question
  6. 10. are the building blocks of matter