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3 Questions

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Grade 7 Chemistry

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Questions and Answers

Which of the following is NOT a characteristic of matter?

It has mass and takes up space

It does not undergo any changes (correct)

It can exist in three states: solid, liquid, and gas

It can be broken down into simpler substances

Which of the following is an example of a chemical change?

Mixing of salt and water

Boiling of water

Melting of ice

Burning of wood (correct)

Which of the following is an example of a physical change?

Rusting of iron

Burning of paper

Mixing of sugar and water

Cooking an egg (correct)

Study Notes

Characteristics of Matter

Matter has mass, which is a measure of its amount
Matter takes up space and has volume
Matter can exist in different states (solid, liquid, gas)

Chemical Change

A chemical change is a process that alters the chemical composition of a substance
Examples: burning, rusting, cooking, and digestion

Physical Change

A physical change is a process that alters the physical properties of a substance, but not its chemical composition
Examples: melting, freezing, boiling, and condensation

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Description

Test your knowledge of matter in grade 7 chemistry with this quiz! Identify the characteristic that is NOT associated with matter, distinguish between chemical and physical changes, and determine examples of each.