What is the difference between physical and chemical changes?

In this lesson, we will compare the characteristics of chemical and physical changes and use our knowledge to categorise changes as either physical changes or chemical reactions.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.A chemical reaction involves a change in the arrangement of particles.

1/5

Q2.A match burning is an example of a chemical reaction.

2/5

Q3.Salt dissolving is an example of a chemical reaction.

3/5

Q4.What is a reactant?

4/5

Q5.What is a product?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.A chemical reaction involves a change in the arrangement of particles.

1/5

Q2.A match burning is an example of a chemical reaction.

2/5

Q3.Salt dissolving is an example of a chemical reaction.

3/5

Q4.What is a reactant?

4/5

Q5.What is a product?

5/5

Video

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Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

What is the difference between physical and chemical changes?

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.A chemical reaction involves the formation of a new substance.

1/5

Q2.A change of state is an example of a physical change.

2/5

Q3.A change in appearance tells us a chemical change has taken place.

3/5

Q4.Sweat evaporating is an example of a ...

4/5

Q5.Sugar burning to form caramel is an example of a ...

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

What is the difference between physical and chemical changes?

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.A chemical reaction involves the formation of a new substance.

1/5

Q2.A change of state is an example of a physical change.

2/5

Q3.A change in appearance tells us a chemical change has taken place.

3/5

Q4.Sweat evaporating is an example of a ...

4/5

Q5.Sugar burning to form caramel is an example of a ...

5/5

Lesson summary: What is the difference between physical and chemical changes?

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