7th Grade Vocabulary Matter

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Across
  1. 2. the smallest unit of matter.
  2. 4. a state of matter made of mostly unassociated atoms or molecules that are compressible and will expand to fill a container.
  3. 7. the amount of space an object takes up.
  4. 8. the amount of matter an object contains.
  5. 10. a procedure used to measure the volume of a solid object by placing it in a known amount of liquid (useful for irregularly shaped objects).
  6. 12. how closely packed together particles (atoms or molecules) are in a given volume of space.Density is calculated by dividing the mass of a substance by the volume.
  7. 13. a state of matter made of closely associated atoms or molecules that are mostly incompressible and will take the shape of their container.
Down
  1. 1. of matter - one of the distinct forms in which matter can exist.
  2. 3. a group of atoms bonded together.
  3. 5. a state of matter made of atoms or molecules that are closely-packed in a regular pattern. Volume and shape remained fixed in this state of matter.
  4. 6. a substance that has mass and volume (takes up space).
  5. 9. a very tiny portion of matter. Can refer to a molecule, groups of molecules, or even atoms.
  6. 11. an observable event, fact, or situation.