STEMfairSaavMi

STEM Fair Topic:Can zinnias tolerate grey water? Fresh water is a important and rare resource, that accounts for only 3% of all of the world's water. I am trying to research one way to conserve it. Questions:
 * 1) Can zinnias survive when watered with grey water,or do they need fresh water?
 * 2) Does grey water affect the growth rate of zinnia?
 * 3) Does fresh water have to be used some of the time, or can it survive on grey water alone?

How I am going to Conduct my Experiment is... I will grow three zinnias each one will receive one type of water.One will receive only grey water, one will receive only fresh water, and the final one will receive half grey water and half fresh water.

Hypothesis My hypothesis is that the one with half grey water and half fresh water will be survive, but will grow at a slower rate. The one with only fresh water survive. The one with only grey water will not survive or it will start to grow but will end up dying because of the bacteria in grey water. Materials Journal Check #1 The zinnias are still growing [all of them]. I believe that the zinnias are in germination. Journal check #2 The zinnias are still growing but I am assuming that they will start growing soon. Journal check #3 All the zinnias are growing,but the one with fresh water and the one with greywater are growing at the same rate. The zinnias with half greywater and half fresh water is grow at a slower rate. First draft The zinnias are all still growing the grey water has worked just as well as the fresh water. Going to watch for the plant dying. Will watch for this because of the bacteria no hypothesis has been made. The zinnia with half grey water and half fresh water surprisingly has not grown very much at all. The one with fresh water has grown very well and is almost fully grow.My conclusion to the plant with greywater is that the bacteria in the greywater is helping the plant to grow. The plants are growing fastly with the bacteria and we already know that fresh water works. The zinnias
 * Pot [three]
 * zinnias(three)
 * Grey water
 * Fresh water