Chemistry revision Flashcards
1
Q
what is a ceramic
A
Hard, brittle, heat-resistant and corrosion-resistant material
2
Q
what does corrosion mean
A
when a metal object is exposed to the open air and bad weather
3
Q
what is a natural polymer
A
sustainable materials which originates from plants, microorganisms and animals
4
Q
what does synthetic polymers mean
A
derived from oil and made by scientist and engineers
5
Q
when are syntetic and natural polymers used
A
coat.adhesives,plastic,fibers,ceramics and composites
6
Q
what is igneous rock
A
made from hot molten rock which crysalizes and solidifies
