• There are 4 state of matter in the world, they are gas, liquid, solid and plasma 3

Properties Of Solid

• Size -: Rigid, Fixed Volume And Fixed Shape

• Takes Shape Of The Container

• They dont change unless a external forces acts on them

Properties Of Liquid

• Not rigid, No fixed shape but has a fixed volume

• Takes the shape of the container

Properties Of Gas

• Not rigid, no fixed shape or volume

• Can be squashed

• Takes up until the container is filled

Change In State Of Matter

• 4 Ways of changes in state -:

• Melting

• Boiling

• Condensation

• Solidifying

The Kinetic Particle Model Of Matter

• Models are used by scientist to explain things that cant be seen or require equipment to look at, thus they make it easier to Imaginate by making models

• These models are represented by atoms and molecules or ions

• When particles are heated up, they increase in speed and kinetic energy

• Substance cools down its particles lose kinetic energy and slow down. This suggests that there is a theoretical lower limit to how cold anything can be. If the particles lose all their kinetic energy and stop moving, it is not possible for the substance to cool any further.