6. Summary and Vocabulary

Summary

  • Matter is all the “stuff” that exists in the universe. It has both mass and volume.
  • Mass measures the amount of matter in a substance or an object. The basic SI unit for mass is the kilogram (kg).
  • Volume measures the amount of space that a substance or an object takes up. The basic SI unit for volume is the cubic meter (m3).
  • Physical properties of matter are properties that can be measured or observed without matter changing to an entirely different substance. Physical properties are typically things you can detect with your senses.
  • Examples of physical properties of matter include melting point, color, hardness, state of matter, odor, and boiling point.

Vocabulary

  • mass: Amount of matter in a substance or object.
  • matter: Anything that has mass and volume.
  • volume: Amount of space taken up by matter.
  • physical property: Property of matter that can be measured or observed without matter changing to an entirely different substance.
  • chemical property: property of matter that can be measured or observed only when matter changes to an entirely different substance.
  • flammability: Ability of matter to burn.
  • reactivity: Ability of a substance to combine chemically with other substances.

CK-12 Foundation, Physical Science. http://creativecommons.org/licenses/by-nc-sa/3.0/