Observe and recognize physical changes in matter as able to change back (reversible), such as water to ice, and chemical changes of matter as unable to change back (irreversible), such as cake to cake batter.

Number: SC.8.P.9.Su.1

Category: Supported

Date Adopted or Revised: 02/08

Big Idea: Changes in Matter : A. Matter can undergo a variety of changes. B. When matter is changed physically, generally no changes occur in the structure of the atoms or molecules composing the matter. C. When matter changes chemically, a rearrangement of bonds between the atoms occurs. This results in new substances with new properties. Clarification for grades K-5: The target understanding for students in the elementary grades should focus on Big Ideas A and B. Clarification for Grades 6-8: The target understanding for students in the middle grades should begin to transition the focus to: C. When matter changes chemically, a rearrangement of bonds between the atoms occurs. This results in new substances with new properties.