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QR Challenge: Physical or Chemical?

QuestionAnswer
chemical1. corrosion of a pipe
chemical2. wood rotting
physical3. ice melting
chemical4. milk sours
physical5. grinding a piece of corn
physical6. inflating a tire
physical7. slicing bread
chemical8. food being digested
physical9. evaporation of sweat
chemical10. leaves changing colors in the fall
physical11. a paper towel absorbing water
chemical12. baking a cake
physical13. dying a t-shirt green
chemicalmarshmallow + fire -> charred pieces
physicalsalt + water -> saltwater
chemicalwater + carbon dioxide + sunlight -> sugar + oxygen

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