Please help me!!! :(!!

Im in a crisis. I want to finish this essay by today even though its due next week. My topic is on Which type of plastic wrap prevents evaporation the best in cold and room temperatures?. We have to write 5 pages of background info!!!!. so far all i wrote was 2.
I need help thinking about things to write for it
Examples of what i did:
intro- about evaporation
-about 3 plastic wraps all about it
- thermoplastic and thermosetting
- how temperature efffects evaporation

I need more paragraph ideas i feel like i cant get 5 pages out of that question.

It sounds like the 5 page of "background info" is in preparation for running some experiment.
Is that right?
If so, you should be writing about how you plan to conduct the experiment, no?
Would you be setting similar containers of liquid in the fridge with the 3 different wraps on them?
Would you be trying to figure out a way to make sure your results are not affected by (let's say) you wrapping one contained more neatly than the others?
Would you be setting exactly the same kind of containers in a room at rm temperature?
Would you be trying liquids of different volatility? (e.g. water & alcohol)
Would you be trying to leave no air space in these containers,
or would that invite the liquid to seep out along the edges where it touches the wrap?
Or would you be trying it with and without air space?
etc etc etc