Final Answer:
clay rolled into a ball, wood that’s been chopped, broken glass, ice melted, paper that has been cut, a crushed can, folded clothes
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Explanation:
A physical change means the object looks different, but it’s still the same material — no new substance is made. Let’s go through each item:
-
Clay rolled into a ball: Still clay, just shaped differently →
✔ physical change
-
Wood that’s been chopped: Still wood, just in smaller pieces →
✔ physical change
-
Broken glass: Still glass, just in pieces →
✔ physical change
-
Ice melted: Solid water (ice) becomes liquid water — same substance →
✔ physical change
-
Fried egg: The egg changes from raw to cooked — proteins rearrange and become new substances →
✘ chemical change
-
Paper that has been cut: Still paper, just smaller →
✔ physical change
-
Fireworks exploded: Creates smoke, light, gases — new substances form →
✘ chemical change
-
Rusted iron: Iron + oxygen = rust (a new substance) →
✘ chemical change
-
Food spoiled: Bacteria cause new chemicals (like acids or gases) →
✘ chemical change
-
Folded clothes: Still the same fabric, just creased →
✔ physical change
-
Burned wood: Turns into ash, smoke, CO₂ — new substances →
✘ chemical change
-
Crushed can: Still aluminum (or steel), just squished →
✔ physical change
So only the ones marked
✔ are physical changes.
Parent Tip: Review the logic above to help your child master the concept of physical changes in matter worksheet.