

Chemical and Physical Changes Concepts
Interactive Video
•
Chemistry, Science, Biology
•
6th - 8th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a change that involves one or more substances?
Souring of milk
Boiling of water
Cutting of paper
Melting of ice
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the chemical composition of a substance during a physical change?
It changes completely
It remains the same
It becomes unstable
It forms a new substance
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT an example of a physical change?
Burning of wood
Glowing of an electric bulb
Sublimation of iodine
Melting of wax
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a characteristic of a chemical change?
It involves no energy change
It is reversible
It is temporary
It forms new substances
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a chemical change?
Freezing of water
Photosynthesis in plants
Cutting of vegetables
Formation of vapors
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is released when wood is burned?
No energy
Only light
Only heat
Heat and light
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a physical change differ from a chemical change in terms of energy?
Chemical change always absorbs energy
Physical change always releases energy
Chemical change never involves energy
Physical change may or may not involve energy
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