Changes in Matter
Explore physical and chemical changes in matter with this Grade 8 science worksheet, covering key concepts and examples.
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Changes in Matter
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Read each question carefully and answer to the best of your ability. This worksheet covers physical and chemical changes in matter.
1. Which of the following is an example of a physical change?
Burning wood
Rusting of iron
Melting ice
Baking a cake
2. What is a key characteristic of a chemical change?
The substance changes state
No new substance is formed
A new substance with different properties is formed
The shape of the substance changes
3. Dissolving sugar in water is a chemical change.
True
False
4. A chemical change is always irreversible.
True
False
5. During a physical change, the chemical composition of the substance .
6. The formation of gas bubbles, a change in color, and the release of heat or light are all indicators of a change.
7. Describe the difference between a physical change and a chemical change, providing an example for each.
Match each example with the type of change it represents.
8. Tearing paper
a. Chemical Change
9. Frying an egg
b. Physical Change
10. Melting butter
c. Both