Matter Properties and Changes

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Part 1: Matter and Its Properties

Vocabulary: Matter is anything that has mass and takes up space. A property is a characteristic that can be observed or measured.

1. Match each word to its meaning by writing the correct letter on the line.

_____ Matter _____ Property _____ Mass

A. The amount of matter in an object

B. Anything that has mass and takes up space

C. A characteristic of a substance or object

2. Circle the state of matter that best describes each item.

a) An ice cube: solid / liquid / gas

b) Juice in a cup: solid / liquid / gas

c) Air in a balloon: solid / liquid / gas

3. Which properties can be observed or measured? Check all that apply.

colour

texture

mass

temperature

what an object is thinking

4. Choose the best answer. Which statement describes a liquid?

It keeps its own shape and volume.

It takes the shape of its container but keeps its volume.

It spreads out to fill all available space.

Part 2: Changes in Matter

5. Write physical or chemical for each change.

a) Cutting paper: ____________________

b) Rust forming on a bicycle: ____________________

c) Melting chocolate: ____________________

d) Baking a cake: ____________________

6. Which sign most strongly suggests that a chemical change has happened?

A solid is broken into smaller pieces.

A new substance forms with different properties.

Water changes from liquid to ice.

7. Observe this situation: An ice cube is left on a plate in a warm room. After 20 minutes, there is a puddle of water on the plate.

a) What change occurred? ________________________________________________

b) Is this a physical or chemical change? ________________________________

c) What evidence supports your answer?

8. Observe this situation: A metal nail is left outside for several weeks. It develops a reddish-brown coating.

a) What evidence suggests a chemical change occurred?

Answer Key

1. Matter — B; Property — C; Mass — A

2. a) solid; b) liquid; c) gas

3. colour, texture, mass, and temperature

4. It takes the shape of its container but keeps its volume.

5. a) physical; b) chemical; c) physical; d) chemical

6. A new substance forms with different properties.

7. a) Melting occurred. b) Physical change. c) The ice changed from a solid to liquid water, but it is still the same substance.

8. The nail developed a new reddish-brown substance called rust. Its colour and properties changed.

Matter Properties and Changes

Matter Properties and Changes

Part 1: Matter and Its Properties

Part 2: Changes in Matter

Answer Key

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