Compare means describing similarities between subjects, while contrasting explains differences between subjects. A Venn diagram uses two overlapping circles to compare two subjects, with each circle representing a subject and the overlapping section showing their similarities.

1. COMPARE AND CONTRAST
Compare means describing similarities between the subjects.
The arch-enemy of comparing is contrasting.
When you contrast two things, you explain ways in which they
are different.
Then, you can use a Venn diagram to sort the information. A
Venn diagram is an organizational tool formed by two
overlapping circles that compare two subjects. Each circle
represents one subject.