Year 7 Chemistry Worksheet

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Date:

Part 1: Chemistry Basics

Choose the best answer for each question.

1. Which state of matter has a fixed shape and a fixed volume?

Solid

Liquid

Gas

2. Which change of state occurs when a liquid becomes a gas?

Freezing

Melting

Evaporation

3. Which statement best describes particles in a gas?

They are tightly packed and vibrate in fixed positions.

They are close together and slide past one another.

They are far apart and move freely.

4. Which of the following is an element?

Oxygen

Water

Salt water

5. Which equipment should be worn to protect your eyes during an experiment?

Safety goggles

Oven mitts

Ear protectors

Part 2: Short Answers and Classifying Matter

6. Describe how the particles in a solid are arranged.

7. Explain why a liquid takes the shape of its container but keeps the same volume.

8. Classify each substance as an element, compound or mixture.

a) Copper: ____________________

b) Carbon dioxide: ____________________

c) Air: ____________________

9. Give one example of a physical change and one example of a chemical change.

10. A student heats water from 20 °C to 80 °C. Is this a physical or chemical change? Explain your answer.

Year 7 Chemistry Worksheet

Year 7 Chemistry Worksheet

Part 1: Chemistry Basics

Part 2: Short Answers and Classifying Matter

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