Question

"that pile of dirty laundry is a science experiment and mother complained is a science experiment"this metopor or simile also what is the meaning

Answer 1

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.