Sorting materials into groups
Appearance
Lustrous - Materials that shine
Non- lustrous - Materials that do not shine
click to edit
Hardness
Hard - cannot be compressed
Soft - can be compressed
Touch
Rough - uneven surface
smooth - even surface
click to edit
Transparency
Transparent - Materials that allow all light to pass through them
Translucent - Materials that allow some light to pass through them
Opaque - Materials that do not allow light to pass through them
click to edit
Solubility
Soluble substances - they dissolve completely in water
Insoluble substances - They do not dissolve in water
click to edit
Flotation
Float - less denser than water
Sink - more denser than water
click to edit
States of matter
Solids
Liquids
Gas
Molecules are loosely packed, highly compressible, do not definite shape and volume
Molecules are very tightly packed, not compressible, have definite shape and volume
Molecules are not so tightly packed, compressible, do not have definite shape but a definite volume
Magnetism
Magnetic materials - They get attracted towards a magnet.
Iron, nickel and cobalt
Non- Magnetic materials - They do not get attracted towards a magnet
click to edit
click to edit
Conductors of heat and electricity
Conductors - they allow heat or electricity to pass through them
Insulators - They do not allow heat and electricity to pass through them