Difference between "job" and "work"

Work
"Work" as noun (uncountable) is used to mean "the activity or the place where you do a job".

• A large part of the work is responding to e-mails.
• I get to work at seven forty-five.

"Work" can also be used as verb meaning "to do something that involves physical or mental effort".

• She is working in the garden.
• I can't work with all of this noise.

Job
"Job" as noun (countable) is used to mean "the execution of a task".

• The builders have done an excellent job on your kitchen.

Exercise 1