Share Chapter 2 : Materials and their structure
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name five solid around us.
table, chair, glass, bottle, shoes, tshirt (other reasonable answer)
name three liquids that you know.
juice, milk, pipe water, mineral water (any reasonable answer)
They have a fixed shape
solid
The particles are packed closely together
solid
They do not have a fixed shape. They change their shape depending on the container they are in
liquid and gas
The molecules are strongly attracted to one another by a strong attractive forces
solid
weak attractive forces between the particles
liquid
No force of attraction between particles
gas
Molecules are free to move and sometimes collide with each other
gas
They spread out/expand and change their volume to fill up whatever container they are in.
gas
The particles vibrate and they can move around by sliding past each other freely.
liquid
Even when they change their shape, they always take up the same amount of space. Their volume stays the same
liquid
The molecules are vibrates about a fixed position but they cannot move pass one another
solid
no fix volume
gas
can be compressed
gas
cannot be compressed and fix volume
liquid and solid
