# The Particle Model 1

Year 10 Topic 1: The Particle Model.
12 Learning Opportunities from Monday the 30th of March until Friday the 8th of May.

Learning Episode 1: States of Matter (introduction).
This Learning opportunity has five tasks to do.
Target Time: 30 minutes.

Task 1: Write three lists.
Make a list of all the solids, another list of all the liquids, and a third list of all gasses you can see in this party:

[You can check your answers at the end of this blog]

CHALLENGE: At the bottom of each list, answer this question: What makes a solid a solid? What makes a liquid a liquid? What makes a gas a gas?

Answers to the challenge:

Task 2: Read the sentences, watch the video, and draw three pictures.
What is matter?
Matter consists of very small particles.
The difference between solids, liquids and gases is in how these particles are ARRANGED.

(You may have heard the terms ATOMS or MOLECULES instead of particles.)

You are going to draw a picture of particles in a solid, a liquid, and a gas.
Watch this video to find out how. https://www.youtube.com/watch?v=Wn48reA1vBs
Now draw three big squares.
Draw the particles in a solid in the first square.
Draw the liquid in the second square.
Draw the gas in the third square.
Check your answers at the end of the blog!

Task 3: Copy and complete two tables, and fill them in by watching a video.

Copy these two tables.
Then watch the video underneath to find the answers.

Now watch this video to find the answers. https://www.youtube.com/watch?v=frFFoiXwqww

Task 4 – check your answers so far. Then TRY TASK 5 – the CHALLENGE!

Answers to Task 1
Some solids were: the table, an elbow, a sandwich (did you find more any others).
Some liquids were: the yellow custard, the red drink, peoples saliva.
Some gasses were: Helium in the balloons, the air in the room!

Answer to Task 2
(Make sure you have plenty of circles in the liquid, just like the one below.

Answers to task 3

TASK 5 – THE CHALLENGE!
In this task you need to write down three paragraphs, answer five questions, and then write three more sentences.

Three paragraphs.

Copy these sentences. Then use these words to complete them.
A: Keywords – strong, close, vibrate, fixed, bond

A: In a solid the particles ______ around a _____ position.  There is a ______ force of attraction or _____ between each particle and they are very _____ together.

B: Keywords – weak, solids, fixed, close

B: In a liquid the particles are _____ together but can move in any direction.  They won’t keep a _____ shape like _____ do because the bonds between the particles are  _____ .

C: Keywords –squashed, bonds, collide, quickly,

C: In a gas the particles are very far apart and move _____ in all directions.  They often ______ with each other and because they are far apart they can be easily _______. There are no ______ between the particles.

Five Questions:

1. Particles in a gas are in a fixed position & can only vibrate-True or False?
2. Draw a diagram to show the particles in a solid.
3. Describe how particles in a liquid are arranged and how they move.
4. Particles are held together by weak attractive forces called …………………
5. Describe then explain the movement of particles in a gas.

Three sentences: – choose the right ending!

• The particles in a solid are (close together or far apart)
• The particles in a solid are (arranged in a random way or arranged in a regular pattern)
• The particles in a solid can (move around each other or not move from place to place)

Well done! You have finished Learning Opportunity 1.
You can check your answers here:

In a solid the particles vibrate around a fixed position.  There is a strong force of attraction or bond between each particle and they are very close together.
In a liquid the particles are close together but can move in any direction.  They won’t keep a fixed shape like solids do because the bonds between the particles are  weak.
In a gas the particles are very far apart and move quickly in all directions.  They often collide with each other and because they are far apart they can be easily squashed. There are no bonds between the particles.

1. False
2. Look at Task 4
3. i) randomly arranges (no rows); ii) move slowly past each other.
4. bonds
5. No bonds so they are far apart. Higher temperature so they move fast.
• The particles in a solid are (close together)
• The particles in a solid are (arranged in a regular pattern)
• The particles in a solid can (not move from place to place)