How did Spider Man get his power?

Answer 1

Peter Parker was on a school field trip with his science class. While taking pictures of genetically enhanced Spiders- he comes to find that there is one missing. Later, he is bitten by the spider on the hand and transforms into the newly pronounced superhero.

Answer 2

He got bit by a blue and red radio active spider that got out of its cage somehow then it crawled on his arm while he was taking a picture then crunch he got bit.