Physical Science Crossword Puzzle

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Across
  1. 2. A place equipped for experimental study
  2. 4. An explanation of things or events based on knowledge gained from many observations and investigations
  3. 5. The five _____ are problem/question, formulate a hypothesis, experiment, collect and analyze results, conclusion, and communicate the results
  4. 7. keep you safe from hazards including cuts, burns, abrasion, crushing, or contact with bio-hazards
  5. 11. The action or process of observing something or someone in order to gain information
  6. 12. Safety glasses you need to wear during a lab
  7. 13. A substance that flows freely but is of constant volume
  8. 16. A physical substance that occupies space and possesses rest mass, especially as distinct from energy
  9. 17. A quantity that can have more than a single value
  10. 18. A group of atoms bonded together
  11. 20. Detailed examination of the elements or structure of something
Down
  1. 1. The ability of a substance to burn
  2. 3. A judgment or decision reached by reasoning
  3. 6. A scientific procedure is undertaken to make a discovery
  4. 8. Possible explanation for a problem using what is known and what is observed
  5. 9. The mass per unit volume of a material
  6. 10. The amount of space that a substance or object occupies within a container
  7. 14. Freedom from harm or danger
  8. 15. A large body of matter with no defined shape
  9. 19. The action or power of focusing one's attention