Model NGSS Lessons: 4th - 5th Grade

Document Type

Teacher Resource

Grade Level

Grade Level: 5th Grade

Publication Date


Background Information

Students are introduced to the differences between physical and chemical changes in simple kitchen substances that react to water and indicators in characteristic ways. The observable clues that a physical change has occurred includes changes in state such as gas, liquid, or solid. The material itself is the same before and after the change. An ice cube melting is an example of a physical change.

Performance Expectations


Conduct an investigation to determine whether the mixing of two or more substances results in new substances.



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