Matter Videos

Dear children,

Here are the 3 videos we had watched in class:

Summary of the videos content:
> all matters are made up of tiny particles (molecules)
> solid: particles are closely packed, cannot move across each other, vibrate in position
> liquid: particles loosely packed, can move across each other (flow)
> gas: particles are far apart, not touching each other

I hope by using particles to explain mass, you have a clearer understanding of what causes the 3 states of matter - solid, liquid and gas, to have its unique 3 properties (shape/volume/compressed) as seen below:

Properties of the 3 states
> solid has:
 definite shape
 definite volume
 cannot be compressed

> liquid has:
 no definite shape
 definite volume
 cannot be compressed

> gas has:
 no definite shape
 no definite volume
 can be compressed

Start your revision early and when in doubt, always ask!

Love,
Ms Yeo