What are melting points and boiling points?

In this lesson, we will learn about how scientists measure temperature, two major 'fixed points' of a substance (melting and boiling point) and how we can determine the state of matter of a substance at a particular temperature when given these fixed points.

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!

Q1.Which change of state occurs when a solid becomes a liquid?

1/5

Q2.Which state changes occurs when a gas becomes a liquid?

2/5

Q3.When a solid is cooled the particles...

3/5

Q4.When a liquid boils the particles...

4/5

Q5.When gases condense the particles...

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!

Q1.Which change of state occurs when a solid becomes a liquid?

1/5

Q2.Which state changes occurs when a gas becomes a liquid?

2/5

Q3.When a solid is cooled the particles...

3/5

Q4.When a liquid boils the particles...

4/5

Q5.When gases condense the particles...

5/5

Video

Play video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

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 are melting points and boiling points?

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

Q1.Under standard conditions a substance will always melt at the same temperature. True or False?

1/5

Q2.Particles in a liquid...

2/5

Q3.Particles in a solid...

3/5

Q4.If the temperature is below a substances melting point it is...

4/5

Q5.If the temperature is above a substances boiling point it is...

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 are melting points and boiling points?

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

Q1.Under standard conditions a substance will always melt at the same temperature. True or False?

1/5

Q2.Particles in a liquid...

2/5

Q3.Particles in a solid...

3/5

Q4.If the temperature is below a substances melting point it is...

4/5

Q5.If the temperature is above a substances boiling point it is...

5/5

Lesson summary: What are melting points and boiling points?

It looks like you have not completed one of the quizzes.

To share your results with your teacher please complete one of the quizzes.

Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Dance