Question

if necessary, add or remove commas from the sentence.
context: i have only one science tutor.
my science tutor sidney crosby wrote a catchy song about the solar system.

Explanation:

Since the context states there is only one science tutor, the name "Sidney Crosby" is a restrictive appositive (it identifies the specific tutor, and the sentence would lose critical meaning without it). Restrictive appositives do not require commas around them.

Answer:

My science tutor Sidney Crosby wrote a catchy song about the solar system.