Understanding Physical and Chemical Changes
Interactive Video
•
Chemistry
•
6th - 7th Grade
•
Hard
Evelyn Hayes
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a characteristic of a physical change?
It always involves heat.
It produces a new substance.
It alters the appearance or phase.
It changes the chemical composition.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a chemical change?
Cutting paper
Burning toast
Boiling water
Melting ice
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a sign that a chemical change has occurred?
The substance changes color.
The substance becomes colder.
The substance changes shape.
The substance remains the same.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to understand the difference between physical and chemical changes?
To predict the weather
To understand the properties of substances
To create new elements
To measure mass accurately
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the molecules in a physical change?
They disappear.
They become larger.
They rearrange but keep the same structure.
They form new chemical bonds.
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