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Physical and Chemical Properties of Matter

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Physical and Chemical Properties of Matter

At a science fair, teams are testing materials to choose safe, useful products. Use the evidence below to decide which observations describe physical properties and which describe chemical properties. A physical property can be observed or measured without making a new substance. A chemical property describes whether a substance can change into a new substance.

Sort the evidence

Remember: colour, state, texture, hardness, melting point and electrical conductivity are physical properties. Flammability and reacting with another substance are chemical properties.

1.The copper wire is reddish-brown and bends easily. Identify one physical property in this evidence.

2.A steel nail reacts with oxygen and water over time, forming rust. Is the ability to rust a physical or chemical property? Explain briefly.

3.Which observation is evidence of a chemical property of wood?

It is brown.
It feels rough.
It can burn in air and form ash and gases.
It is less dense than many metals.

4.Classify each property as physical or chemical: (a) melting point, (b) flammability, (c) ability to react with vinegar, (d) electrical conductivity.

Make sense of changes

For each situation, decide whether a new substance forms. Use that clue to explain the change.

5.Ice melts in a glass and becomes liquid water. Is melting a physical or chemical change? What happens to the substance’s identity?

6.A student mixes baking soda with vinegar. Bubbles form as a gas is produced. What evidence suggests a chemical change has occurred?

7.Complete the idea: A physical property can be observed without changing a substance’s .

8.Complete the idea: A chemical property describes how a substance may to form a new substance.

9.True or false? If a material changes shape when cut or bent, a chemical change must have happened. Give a reason for your answer.

TrueFalse

Choose a material thoughtfully

The science fair team needs a material for a reusable handle. They want it to be hard, not conduct electricity easily, and not catch fire readily. Think about how physical and chemical properties help people make safe choices.

10.Name one physical property and one chemical property that would be useful to test when choosing a handle material. Explain why each matters.

11.A classmate says, “A substance’s colour is a chemical property because it tells us what the substance is.” Correct the claim in your own words, using the difference between observing a property and forming a new substance.

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Physical and Chemical Properties of Matter

Physical and Chemical Properties of Matter

Sort the evidence

Make sense of changes

Choose a material thoughtfully

3 printable pages

About This Worksheet

Free in Kuraplan

Print-Ready

AI-Generated

For Teachers & Parents

Need a custom version of this worksheet?

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