Science

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Across
  1. 7. - the phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first
  2. 9. - the state of matter in which materials have a definite shape and a definite volume
  3. 10. - the process that changes a substance from a liquid to a gas at temperatures below the substance’s boiling point
  4. 12. - the phase change in which a substance changes from a gas or vapor to a liquid
Down
  1. 1. - a description of a change in which a system releases energy to its surroundings
  2. 2. change - a reversible physical change that occurs when a substance changes from one state of matter to another
  3. 3. - the state of matter in which a material has a definite volume but not a definite shape
  4. 4. - the phase change in which a gas or vapor changes directly into a solid without first changing into a liquid
  5. 5. - the phase change in which a substance changes from a liquid into a gas
  6. 6. - a description of a change in which a system absorbs energy from its surroundings
  7. 8. energy - the energy an object has due to its motion
  8. 11. - the state of matter in which a material has neither a definite shape nor a definite volume