Scientific reading

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Across
  1. 6. Able to work well at high temperatures
  2. 7. Small pieces taken to study something
  3. 10. An object used to hold something
  4. 11. Related to heat or temperature
  5. 12. A test done to learn something
  6. 14. Proteins that speed up chemical reactions
Down
  1. 1. Looking at two or more things to see similarities and differences
  2. 2. To chemically break something apart.
  3. 3. small particles that make up all materials
  4. 4. Clean chemical parts with nothing mixed in
  5. 5. Able to do a job well
  6. 8. Turning old materials into new products
  7. 9. To separate something into smaller parts
  8. 13. How hot or cold something is
  9. 15. Ability to stay the same without breaking or changing