States of Matter

• Chemistry
• Secondary Education
• Age 12,13

IGCSE Chemistry 0620

Topic 2.1a States of Matter

04 September 2023

Describe how you feel right now 

using an emoji.

😒🙁😐🙂😃

• State the distinguishing properties of solids, liquids and gases  
• Describe the structures of solids, liquids and gases in terms of particle separation, arrangement and motion  
• Describe changes of state in terms of melting, boiling, evaporating, freezing and condensing  
• Describe the effects of temperature and pressure on the volume of a gas  

I intend to:

04 September 2023, Monday

• What is "matter"?
• What are the three states of matter?
• How is matter classified?
• What are the three particles of matter?

Review

04 September 2023, Monday

Why does a car tire explode 

when the temperature increases?

Activity A: States of Matter Properties

• Using your coursebook, pages 1 to 4, study the properties of solids, liquids, and gases.
• Complete the table summarising the properties.
• Present your output.

30 August 2023, Wednesday

docs.google.com

Solids

• fixed volume and shape 
• high-density
• The atoms vibrate in position but can’t change location.
• The particles are packed very closely together in a fixed and regular pattern.

04 September 2023, Monday

Post-Activity Discussion

Liquids

• fixed volume but adopt the shape of the container
• less dense than solids (an exception is water) but much denser than gases
• The particles move and slide past each other which is why liquids adopt the shape of the container and also why they can flow freely

04 September 2023, Monday

Gases

• NO fixed volume = take up the shape of the container
• very low density
• Since there is a lot of space between the particles, gases can be compressed into a much smaller volume.
• The particles are far apart and move randomly and quickly (around 500 m/s) in all directions
• They collide with each other and with the sides of the container (this is how pressure is created inside a can of gas).

04 September 2023, Monday

04 September 2023, Monday

Activity B: State Changes

• Using the information in the table, make a flow diagram showing ALL the state changes.
• Be creative.
• Present your output.

04 September 2023, Monday

04 September 2023, Monday

Post-Activity Discussion

Self-Assessment for Learning

30 August 2023, Wednesday

T O  D O:

• Identify two ideas you do not understand quite well in our sessions.
• Ask someone who can explain and write the explanations in your notebook.
• Verify your learning from a classmate by sharing it with the teacher.

Week 05 Reflection 1: