Physical v. Chemistry

Yum! A student removes a loaf of bread hot from the oven. The student cuts a slice off the loaf and spreads butter on it.

• Physical Change

• Chemical Change

• Need more information.

Your friend decides to toast a piece of bread, but leaves it in the toaster too long. The bread is black and the kitchen if full of smoke.

• Physical Change

• Chemical Change

• Need more information.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

You forgot to dry the bread knife when you washed it and reddish brown spots appeared on it.

• Physical Change

• Chemical Change

• Need more information.

You blow dry your wet hair.

• Physical Change

• Chemical Change

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In baking biscuits and other quick breads, the baking powder reacts to release carbon dioxide bubbles. The carbon dioxide bubbles cause the dough to rise.

• Physical Change

• Chemical Change

• Need more information.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A straight piece of wire is coiled to form a spring.

• Physical Change

• Chemical Change

• Need more information.

A few drops of food coloring is added to a cup of water.

• Physical Change

• Chemical Change

• Need more information.

Tags

NGSS.MS-PS1-2

Chewing French fries into smaller pieces.

• Physical Change

• Chemical Change

• Need more information.

Enzyme in the digestive system breaking down French fries

• Physical Change

• Chemical Change

• Need more information.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

During a Fourth of July fireworks show, the fireworks explode, giving off beautiful colors.

• Physical Change

• Chemical Change

• Need more information.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5