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Science
5th -
9thgrade
Let's Review: Physical and Chemical Changes!
15 questions
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- 1. Multiple Choice
What happens in ALL chemical changes?
Change in state of matter.
A new substance is formed.
Bubbles are produced
An explosion.
- 2. Multiple Choice
Is mold growing on cheese a physical or chemical change?
Physical: No new substance is created.
Chemical: A new substance is created.
- 3. Multiple Choice
Which property shows us that mold growing on cheese is a CHEMICAL change?
The cheese has changed shape.
The cheese has changed color.
The cheese has melted.
The cheese is old.
- 4. Multiple Choice
Is sharpening a pencil a physical or chemical change?
Physical: No new substance is created.
Chemical: A new substance is created.
- 5. Multiple Choice
Which of the following IS a clue that a chemical change has occurred?
The state of matter changed.
The size changed.
The temperature of the matter changed.
The shape of the matter changed.
- 6. Multiple Choice
The diagram shows an Alka Seltzer in water. This is a chemical change because of:
HINT: There are two answers here!
An unexpected color change.
An unexpected temperature change.
Fizzing or bubbles were produced.
A completely new substance was created.
- 7. Multiple Choice
The photograph shows the ingredients for baking a cake. After the cake has baked, how do I know that a chemical change has occurred?
HINT: There are two answers here!
Because there was fizzing or bubbles while the cake baked.
Because I can still get all of my ingredients out from the baked cake.
Because I can no longer get all of my ingredients out from the baked cake.
Because a new substance was created, indicating that a chemical change has taken place.
- 8. Multiple Choice
Mrs. Godwin is creating a craft. She is cutting construction paper into smaller pieces.
Cutting construction paper into pieces is an example of what kind of change?
A change in mass.
A physical change.
A chemical change.
A change in energy.
- 9. Multiple Choice
Which of the following is NOT an example of a physical change?
Crumpled paper.
Pencil sharpening.
Shrunken clothing.
Rust.
- 10. Multiple Choice
A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?
Cutting a piece of paper.
Folding a piece of paper.
Tearing a piece of paper.
Burning a piece of paper.
- 11. Multiple Choice
Which observation is a sign that a chemical change has taken place?
A rotting potato gives off a bad smell.
A melting block of ice leaves a large puddle of water.
A cloud changes shape when blown by the wind.
A plaster statue breaks into pieces when it falls onto the floor.
- 12. Multiple Choice
At home, James is molding Play - Doh into various shapes. This is an example of a physical change because:
James started with Play - Doh but now has various shapes and sizes of Play - Doh.
James started with Play - Doh but now has created a new substance.
- 13. Multiple Choice
Which example best describes a chemical change in matter?
An ice cream cone melting.
A newspaper torn into piece.
A car rusting over time.
A cup of water freezing.
- 14. Multiple Choice
Which is the best example of a physical change in matter?
A log burning.
An ice cube melting.
A flashlight turning on.
A firecracker exploding.
- 15. Multiple Choice
Emily asked Katie what she could do to an egg for a chemical change. Katie answered correctly and said that she could:
Drop the egg on the ground.
Cook the egg in a frying pan.
Crack the egg into a bowl.
Paint the egg using food dye.
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