After reading this you think to your self :
What kind of ten year old writes like that? She must be some sort of prodigy, no doubt in a few years she could potentially accomplish her goal and get a nobel prize. Assuming no one beats her to it.
Wait a minute, then if I merged with her. Wouldn't I be that respected scientist getting that prize ?
You decide the risk is worth the reward and contact her. The two of you arrange a meeting place and later successfully merge. Satisfied at the result you set off to your local university to enroll in their biology program.
However your are soon struggling with your own biology. Every step is stimulating you like never before and making you incredibly horny.
You try to formulate an hypothesis as to why you are feeling this way. You theorize that it's because you suddenly went from being a prepubescent girl and/or man to being a grown adult woman. No part of you is even remotely used to the feeling of your new body. You quickly pull out your phone and start taking notes about yourself.
This is valuable scientific data and you'll probably never get another chance to document a merge involving children.