Structure and Properties of Matter

BIG IDEA/COMMON THREAD

Matter is made of particles too small to be seen. Regardless of the type of change that matter undergoes, the total weight of matter is conserved. The mixing of two or more substances results in new substances.

ENDURING UNDERSTANDINGS

  • Matter exists as particles that are too small to see, and is always conserved, even if it seems to disappear.
  • Measurements of a variety of observable properties can be used to identify particular materials.
  • Chemical reactions that occur when substances are mixed can be identified by the emergence of substances with different properties; the total weight remains the same.

ESSENTIAL QUESTIONS

  • How can matter change?
  • How can properties be used to identify materials?

RESOURCES

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