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Having fun at an outdoor party can involve chemical and physical changes. Which activity describes a chemical change?
tarnish
becoming sunburned
It rusted
Roasting marshmallows over a fire
digesting the salad
Sweeping the sidewalk is a physical change
Change in state
Sugar becoming caramel
Miguel wears an antique copper ring. Every few days, the ring looks green and dull. Miguel polishes the ring to make it shine again. What is the substance that forms on Miguel's ring?
tarnish
becoming sunburned
It rusted
Roasting marshmallows over a fire
digesting the salad
Sweeping the sidewalk is a physical change
Change in state
Sugar becoming caramel
From the time it was first built, a boat sat in a storage building. The boat changed from when it was new. The iron sides of the boat have formed iron oxide. What happened to the boat?
tarnish
becoming sunburned
It rusted
Roasting marshmallows over a fire
digesting the salad
Sweeping the sidewalk is a physical change
Change in state
Sugar becoming caramel
Blake will cook some pasta for dinner. He puts a pot of water on the stove to boil. What best describes the type of physical change of boiling water?
tarnish
becoming sunburned
It rusted
Roasting marshmallows over a fire
digesting the salad
Sweeping the sidewalk is a physical change
Change in state
Sugar becoming caramel
Ian pushes the mower around the yard, cutting the grass to about 2 in. tall. When he stops the mower, he removes the grass catcher and pours the clippings into the compose pile for them to decompose and sweeps the sidewalk. Which statement is true?
tarnish
becoming sunburned
It rusted
Roasting marshmallows over a fire
digesting the salad
Sweeping the sidewalk is a physical change
Change in state
Sugar becoming caramel
Before swimming, Kiera covers her arms and legs with sunscreen. She blows up an inner tube to float on and jumps into the pool. After an hour, Kiera notices that her face has become sunburned. Which action is a chemical change?
tarnish
becoming sunburned
It rusted
Roasting marshmallows over a fire
digesting the salad
Sweeping the sidewalk is a physical change
Change in state
Sugar becoming caramel
Carlos is making caramel apples. He melts sugar in a pan. He watches it carefully as the sugar turns brown and becomes caramel. He pushes a stick into the bottom of an apple. Then he stirs the apple in the caramel. Pick the chemical change
tarnish
becoming sunburned
It rusted
Roasting marshmallows over a fire
digesting the salad
Sweeping the sidewalk is a physical change
Change in state
Sugar becoming caramel
Winnie wants to make a tossed salad. She chops lettuce, tomatoes, carrots, and other vegetables. Then she puts them into a large bowl and mixes them up. She then eats it and her body digest it. Which is a chemical change?
tarnish
becoming sunburned
It rusted
Roasting marshmallows over a fire
digesting the salad
Sweeping the sidewalk is a physical change
Change in state
Sugar becoming caramel
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