Because it gives them pride in what they are doing
A simile can be found when using "like" or "as" between two things. Example: I'm as happy as a clown.
Your question would be a metaphor. Both things are being compared to a science expieriment, probably meaning that they need to have an outcome, but it isn't known for sure if it will be a good or bad outcome.
Things like this can be taken many ways, so if you think something else, I'm sure it would work as well.
A folktale because those always have stuff like that
The sentence which has the phrase, "A high-pitched screeched", as the subject of a sentence is: D. Suddenly, a high pitched screech , the crow's call, pierced the air. Hope that helps.
