The document discusses the three states of matter - solids, liquids, and gases. It explains that all matter is made up of tiny particles called atoms or molecules that move differently depending on their state. Solids have a defined shape, while liquids take the shape of their container as their particles can flow past one another. The document also describes how states can change through physical changes when heat is added or removed, such as melting, freezing, boiling, and condensation.

1. Learning Intention Success Criteria
• Understand what states of matter are.
• Understand what the particles in solid liquids and gases look like.
• Begin to understand the process of changing state.

3.  All matter exist in one of three states: solid, liquids
and gases. Each of these have different
arrangements of particles.

4. 
All matter is made up of tiny particles called
atoms or molecules. Molecules are always
moving. They move differently depending on
whether they are a solid, liquid or gas.
Simulation of the States of Matter
-Practical Activity-
Role modelling the states of matter (in open area)

5.  Solids, liquids and gases are all around us.
Some substances can change from one state
to another when heated or cooled. Water can
change into all three states.
 Demonstration

6.  This diagram
shows that if
you add heat
to a substance,
it can change
its state of
matter.

7.  A substance can change
from a solid to a liquid,
from a liquid to a gas, or
from a liquid to a solid.
 These changes are physical
changes. The substance is
the same, just a different
form, and the process can
be reversed.

8.  Solids and liquids expand when they get hotter
because the particles move further apart.
When they cool, they contract because the
particles become closer together.

9. What are the 3 states of matter? _________, _________ and _________
Fill in the gaps:
__________________ occurs when a solid becomes a liquid.
__________________ occurs when a gas becomes a liquid.
__________________ occurs when a liquid becomes a solid.
___________________occurs when a liquid becomes a gas.
How would you describe the arrangement of particles in a solid?
What are the particles in a liquid able to do that means a liquid can
take on the shape of the container?