McGraw-Hill Science 2005 Return to Unit List
Grade 4
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A physical change begins and ends with the same type of . You can cause a change in by moving or rearranging pieces of paper. You can cause a change in by shredding a piece of paper. Crumpling a piece of foil is an example of a change in . Water can exist in states. Melting an ice cube is an example of a change in . Changes in state are caused by energy. The more heat energy matter has, the its particles move.
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