Will students get covid-19 if there's a lot of people walking around outdoors but everyone had their masks on? social distancing not 6 ft due to some factors, will germs transfer from someone even if everyone is wearing mask?

Not an issue of “yes” or “no” but rather “more” or “less”. It’s layer upon layer upon layer. Outdoors is better than indoors. 6 ft is better than 3 ft. Masks are better than no masks. (Vaccine is better than no vaccine). Each layer contributes to protection by a different mechanism. The more layers you have, the safer. Masks + outdoors pretty safe - try to isolate those with active cough