Would this be another good science fair project/experiment?

Question

how does caffeine affect plant growth? then we take three plants three different drinks of caffeine and water with that!!!!!

Answer 1

Then you would know what caffeine does to plants. I won't hurt them because a lot of people put used coffee grounds in their potting soil and gardens.

This site has a lot of really neat expeiments on it.
http://www.9news.com/spangler/default.aspx

Answer 2

That sounds like a good start. You would want to work with plants that grow quickly already, such as a Castor bean. Perhaps make an array of three different plants (Castor, Soy, and another), with three different levels of caffeine in their water. That would give you nine results, allowing you to make some nice charts to go with your project.

Be prepared, chemicals that act as stimulants on humans usually have different effects on plants. The physiology is completely different. You may very well find that caffeine will inhibit the various plant's growth.

Good luck with your project!

Answer 3

Sounds good, but I would maybe grind a caffeine pill in some water, maybe with varying concentrations(ex 1/4 pill in 8 oz, 1/2 pill in 8 oz, I whole pill in 8 oz, you can ask a chem teacher to help you convert these concentrations into ug/ml units) and water with those three concentrations. This way your results are only the effects of caffeine rather than caffeine, benzoic acid, high fructose corn syrup, and other additives added to soda. If it interests you I can send you a more detailed procedure. But anyway, Good LUck!! ~Jenn

Answer 4

I think it would be great, but please let me know the results. This is the main way I water the plant behind my desk and it looks awful. But I don't give it regular amounts, so I'm not really a good source other than my interest.

It's a dieffenbachia

Answer 5

not good.

if you want a GOOD science project with plants, build a terrarium with a encasement of salt water on and around it to see the results of salt-water (sea water like you'd get at the pet store for saltwater fish) filtered sunlight if it will thrive the process of photosynthesis like i belive it will

if you're brave and smart enough to try it

Answer 6

That would Be very good. A student in my class did the same one and they got an A.

Answer 7

Well, ya know, they say caffine stunts your growth so this could either prove or disprove that. Way to go!

Answer 8

you would also need a control such as a plant on distilled water

Answer 9

sweet nice idea