Chp 2 States of matter summary note .pdf

cambridge lower secondary science

1. Chapter 1
The particulate nature of matter

2. 1.1 Solids, liquids and gases

3. Solids, liquids and gases
Solids Liquids Gases
Fixed volume and shapeFixed volume but not a fixed
shape
No fixed volume and shape
Strong forces of attraction
between particles
Weaker attractive forces as
compared to solids
Forces of attraction
between particles are
extremely weak.
Atoms vibrate in positionParticles can move and
slide past each other
Particles are far apart and
move quickly

8. 1.2 Changes of state

9. Changes of state

13. Heating and cooling curve
•Heating curveshows how
the temperature changes as
a substance is heated up.
•Cooling curve shows how the
temperature changes as a
substance is cooled down.