1
Optical Property. Can see through them, but not clearly.
2
Thermal Property. They become larger when temperature increases.
3
Can be spread into films.
4
Can form filaments or strings.
5
Polyethylene Terephthalate
6
Color of the container or bin where you throw plastic, metal and carton.
7
Ratio between mass and volumen
9
Mixture of one metal with other metals and materials.
10
Resistant to be broken when hit.
11
Color of the container or bin where you throw paper and cardboard.
12
Not easily scratched by another material.
13
Brown substance produced when a metal turns oxidated.
