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Matter is conserved because atoms are conserved in physical and chemical processes.

TERMS

• Matter - physical substances

• Atoms - the basic unit of elements

• Conservation - the quantity of a physical quantity remains constant

• Processes - a series of actions or events

  • Chemical - atoms are regrouped into different molecules

  • Physical - a series of changes through states

STANDARDS

MS-PS1-5 / MS-LS1-7 / HS-PS1-7 / HS-ESS2-6