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WorksheetsChemical and Physical Changes
Total questions: 11
Worksheet time: 6mins
What kind of change is burning wood?
Biological
I don't know!
Physical Change
Chemical Change
Jess had put a bar of chocolate in her pocket. A hour later, her pocket was brown with melted chocolate! Jess wants to know if that is a chemical change or physical change. What would you tell her?
"I don't know. Ask the teacher!"
"I'm pretty sure its a physical change because it can be returned back to its original form."
"Hmm. It's a chemical change because it changed form and its form changed. Right?"
"..."
How can you tell when there is a chemical change taking place?
Gas Produced
Color change
Heat Produced
All of the Above
Carrie is 5 years old. While she was outside, she left her water bottle outside. When she came back out the next day, her water was frozen. What kind of change took place?
Crazy change
Physical
Chemical
???
Carly is really hungry. She just ate a granola bar. She wishes she could eat it again. On the way to the store she says,"Sister/Brother, can I eat that granola bar again?Can it be restored back to its original form?" You think, and reply...
"That's a silly question! It can't be restored back to its original form,which means its a chemical change, and of course you can't eat it again!"
"Hmm, I'm sure its a physical because you can eat it again."
"I don't know. You should ask mom."
What is the difference between a chemical change and a physical change?
Chemical changes can easily be changed and physical changes cannot.
Physical changes are easily irreversible, but chemical changes are not.
Chemical change the chemical properties of the object, while physical changes change the physical properties.
I have no idea.
Sky is watching the fireworks on July 4. She wonders what kind of change the fireworks went through. Can you help her?
Chemical Change
Physical
I don't know
I think it uses heat so chemical!
What is the change a apple as gone through if it has turned brown after being left out?
Chemical change
Physical change
Both
Carrie is making a cake. Once she takes the cake out of the oven, she realizes that the cake is puffy and fluffy. What happened to the cake?
It went through a physical change
both physical and chemical
just chemical
???
Chelsie went to camp in the summer. When she roasted her marshmallow over the fire, the marshmallow blackened and became gooey. She asked you what happened to it. What would you tell her, using experience?
It was a physical change because it can be returned to regular form.
It's a chemical change because the change is irreversible.
POP QUIZ!!!
YAY!!!
Okay...
