Changes in matter. Colorado Academic Standards (CAS).
Colorado Academic Education Standards (CAS). A physical change is when something changes its appearance without changing its makeup. An example of a physical change is chopping wood. An example of a chemical change is burning the wood. Read More...
The resources above correspond to the standards listed below:
Colorado Academic Standards (CAS)
CO.1. Physical Science
1.1. Matter exists in different states such as solids, liquids, and gases and can change from one state to another by heating and cooling. Students can:
1.1.c. Identify the state of any sample of matter
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