Investigating changes of state

This lesson looks at how changes of state can be investigated and how to determine the state of matter based on melting and boiling 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.Identify the properties of liquids. (Choose 2 answers)

Select two (2) boxes

1/6

Q2.Which change of state turns a liquid into a gas?

2/6

Q3.Which change of state turns a gas into a liquid?

3/6

Q4.Which of the following happens when a substance is heated?

4/6

Q5.Which statement best describes the movement of particles in a liquid?

5/6

Q6.What happens during freezing?

6/6

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.Identify the properties of liquids. (Choose 2 answers)

Select two (2) boxes

1/6

Q2.Which change of state turns a liquid into a gas?

2/6

Q3.Which change of state turns a gas into a liquid?

3/6

Q4.Which of the following happens when a substance is heated?

4/6

Q5.Which statement best describes the movement of particles in a liquid?

5/6

Q6.What happens during freezing?

6/6

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:

Changes of state (Part 2)

This quiz will test your knowledge from this lesson and your prior learning.

Q1.A flat section on a heating or cooling curve graph shows...

1/6

Q2.What is the melting point of ice?

2/6

Q3.In a chemical reaction, if the mass of one reactant is 10g and the mass of the other reactant is 15g, what must the overall mass of the products be?

3/6

Q4.What is meant by the term 'condensing'?

4/6

Q5.Substance X has a melting point of 30°C and a boiling point of 75°C. In which state of matter will it be at room temperature?

5/6

Q6.Substance A has a melting point of 15°C. Substance B has a melting point of -8°C. Substance C has a melting point of 45°C. Which of these substances will remain a solid at room temperature?

6/6

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:

Changes of state (Part 2)

This quiz will test your knowledge from this lesson and your prior learning.

Q1.A flat section on a heating or cooling curve graph shows...

1/6

Q2.What is the melting point of ice?

2/6

Q3.In a chemical reaction, if the mass of one reactant is 10g and the mass of the other reactant is 15g, what must the overall mass of the products be?

3/6

Q4.What is meant by the term 'condensing'?

4/6

Q5.Substance X has a melting point of 30°C and a boiling point of 75°C. In which state of matter will it be at room temperature?

5/6

Q6.Substance A has a melting point of 15°C. Substance B has a melting point of -8°C. Substance C has a melting point of 45°C. Which of these substances will remain a solid at room temperature?

6/6

Lesson summary: Investigating changes of state

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Time to move!

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Move around:
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On the spot:
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Gas pressure

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