Wareer connections - welder
name
per
1. why is it important for the welder to know the physical and chemical properties of the
substances he or she is welding together before they begin?
2. list a few physical properties and chemical properties a welder might want to know about the
substances before welding begins,
3.
explain how a welder could use physical and chemical properties to identify unknown
substances in the workshop (for example, iron is magnetic).
4. what adjustments might an underwater welder have to make to do his or her job compared
to a metal welder in an automobile shop?
5. how did what you just learned about physical and chemical properties relate to the welder's
job? is this a career you are interested in?

i need on all of them