What should i search on google to find how flower stems work?

im doing a science project and i need to find backround research on plants and the method of plants using water and i can't find anything. please help

What should i search on google to find how flower stems work?
Just try water+plant. This site was one of the first google showed:http://edis.ifas.ufl.edu/AE021


Or water+balance+plant:


http://64.233.183.104/search?q=cache:Tb6...


http://school.discoveryeducation.com/sci...





Hope be it helps!
Reply:Try searching on Google Images. Sometimes helpful pics come up and you can use the links from there to find helpful sites. Hope this helps.