PURE METALS AND ALLOYS
LC: I can explain what alloys are and why
they are used.
Starter:
What are these 3 items made of? Can you find
them in the periodic table? Why/Why not?
THESE ITEMS ARE MADE OF ALLOYS
Iron
Pure metal
Why do we think
scientists would
develop this alloy?
Steel
Alloy
Iron + carbon ( + 2 other
metals)
What
does this
graph
show
you?
Pure metals (pure substances) have fixed
melting and boiling points. These can be
used to identify substances.
Alloys (impure substances) have different
melting and boiling points depending on
the composition of the alloy.
CAN YOU THINK OF ANYWHERE
ELSE WE USE ALLOYS?
• IN ART STRUCTURES!