Page 63 - Big Ideas Year 9 sciPAD 2025

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SCIPAD - BIG IDEAS - BOOK 1
THE NATURE OF MATTER
Key Word List
Matter
My definition: 

Particle Theory of Matter
My definition: 


Solid
My definition: 

Liquid
My definition: 

Gas
My definition: 

Evaporating
My definition: 

Condensing
My definition: 

Solidifying
My definition: 

Melting
My definition: 

Sublimation
My definition: 

THE NATURE OF MATTER
By the end of this chapter you should be able to:
Describe the ‘Particle Theory of Matter’.
Explain the differences between the three states of matter.
Outline how to change matter from one state to another.
Explain the state changes as ice turns to steam.
Explain the process of diffusion.
Explain the processes of thermal expansion and contraction.
Outline how Māori tūpuna used thermal expansion and contraction to
create toki.
Use the ‘Particle Theory of Matter’ to explain some everyday phenomena.
I KNOW THIS
ALREADY
I LEARNED
THIS
I REVISED
THIS
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