Coordinating conjunctions connect grammatically equal elements. Coordinating conjunctions are sometimes called the "Fan Boys" conjunctions-For, And, Nor, But, Or, Yet, So.
for Connects a reason to a result
I am a little hungry, for I didn't eat breakfast this morning.
Connects equal similar ideas
John likes to fish and hunt.
Connects two negative sentences
She does not eat meat, nor does she drink milk.
Connects equal different ideas
I like to eat fish but not to catch them.
Connects equal contrasting ideas
It issunny yet cold.
Connects a resultt or a reason
I did not eat breakfast this morning, so I am a little hungry.