MATERIALS
All objects we use are made of materials.
Materials can be:
Natural Man made
Natural materials
Materials that come from plants, animals and rocks.
Example:
ivory
clay
leather
wool wood
straw
Man made materials
Example:
Bricks
GlassSteel
Plastic bottlePaper
How a material looks and feels like is called its property.
Materials have different properties that
make them useful for different jobs.
1) Shiny or dull.
2) Rough or smooth
3) Hard or soft
4) Strong or weak
5) Water proof or absorbent
6) Transparent, translucent or opaque
7) Flexible or rigid
8) Elastic or inelastic
9) Magnetic or non-magnetic
10) Heat conductor or insulator
Properties
Teddy bear