Matter Properties and Changes

Edit Answers
1234567891011121314151617181920
Across
  1. 2. Gaseous state of a substance that is a liquid or solid at room temperature.
  2. 5. One that has a uniform composition throughout and always has a single phase; also called a solution.
  3. 6. A form of matter that has its own definite shape and volume, is incompressible, and expands only slightly when heated.
  4. 11. of matter (three words)
  5. 12. A physical blend of two or more substances in any proportion in which each substance retains its individual properties; can be separated by physical means.
  6. 14. (two words) A chart that organizes all known elements into a grid of horizontal rows (periods) and vertical columns (groups or families) arranged by increasing atomic number.
  7. 15. A uniform (homogeneous) mixture that can contain solids, liquids, or gases.
  8. 17. A chemical combination of two or more different elements; can be broken down into simpler substances by chemical means and has properties different from those of its component elements.
  9. 18. (two words) A transition of matter from one state to another.
  10. 20. (two words) A characteristic of matter that can be observed or measured without changing the sample’s composition—for example, density, color, taste, hardness, and melting point.
Down
  1. 1. A technique that can be used to physically separate most homogenous mixtures based on the differences in the boiling points of the substances.
  2. 3. (two words) The ability of a substance to combine with or change into one or more new substances.
  3. 4. When a solid changes directly into a gas without first becoming a liquid.
  4. 7. (two words) A type of change that alters the physical properties of a substance but does not change its composition.
  5. 8. A pure substance that cannot be broken down into simpler substances by physical or chemical means.
  6. 9. A form of matter that flows, has constant volume, and takes the shape of its container.
  7. 10. One that does not have a uniform composition and in which the individual substances remain distinct.
  8. 13. A form of matter that flows to conform to the shape of its container, fills the container’s entire volume, and is easily compressed.
  9. 16. (two words) A physical property that remains the same no matter how much of a substance is present.
  10. 17. (two words) A process involving one or more substances changing into new substances (also called a chemical reaction).
  11. 19. (two words) A physical property, such as mass, length, and volume, that is dependent upon the amount of substance present.