Science Buddies: "Ask an Expert"

Science Fair Questions
I am testing the effects of grey water on lant growth.
I have been growing 10 plants with tap water and 10 plants with grey water. I would Appreciate any help anwsering these questions

1. What are the primary components of grey water?
2. What is the maximum percentage of detergent that can be used in grey water until it comes unrecyclable?
3. What are some uses of grey water?
4. How is grey water recycled?
5. Is recycling grey water cost effective?
6. What are some of the health hazards when recycling grey water?
7. Does grey water harm the environment?

Hi there,

Welcome to Science Buddies! It sounds like you have an interesting project comparing the effects of tap water and grey water on plant growth.

All of your questions appear to be background questions that can be answered by doing a bit of research. The purpose of Ask an Expert is to help answer your questions about your actual project, not to give you the answers to background questions that you can find on your own. Have you tried doing a Google search for "grey water"? One strategy is to start with Wikipedia (http://en.wikipedia.org/wiki/Greywater) and use it to find more accepted sources for the information.

Try doing some searches, and please post back to this same thread if you have further questions. Here are a few links to get you started:
http://www.greywater.com/
http://www.oasisdesign.net/greywater/
http://greywateraction.org/greywater-recycling

Good luck!
Heather

Hi,

Heather has given you some really good advice for your background research. You should also check out the project on the Science Buddies website on this topic, which includes a good experimental set up for this type of project:

https://www.sciencebuddies.org/science- ... p040.shtml


Have you thought about how you will measure your results? Let us know if you have any other questions.


Donna Hardy