Physical and Chemical ChangeOne you can undo. One you cannot.5th GradePHYSICAL CHANGENo new substance is madeUsually reversibleMelting, freezing, boilingCutting, crushing, dissolvingIce → water → ice againCHEMICAL CHANGEA new substance is madeUsually irreversibleBurning, rusting, cookingSigns: bubbles, colour change,heat, smellWood → ash. You cannot get thewood backTHE DIFFERENCE THAT MATTERSDissolving sugar is physical — evaporate the water and the sugarreturns. Burning it is chemical.Look for the signs: new colour, new smell, gas produced, heat givenoff, or something you cannot reverse.Physical and Chemical Changewww.littleactivity.com

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Science · 5th Grade

Physical and Chemical Change

One you can undo. One you cannot.

How to use it

Ask whether a new substance appeared. That is the whole test.

Free · print-ready PDF · US Letter and A4

Grade
5th Grade
Ages
10–11
Subject
Science
Pages
1

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