Expert: Walter Hintz - 2/12/2011

Question
QUESTION: how do I begin the process to propose a testable hypothesis to Salt in soil may affect plant growth?

ANSWER:    Hi Deborah
The first thing you have to do is state your problem or question In this case "Will salt in the soil; affect the growth of plants"
Your hypothesis is a statement answering this question. Then you design an experiment to test your hypothesis. If you need help setting up the experiment let me know

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QUESTION: I will need further help in setting up the experiment. thanks

Answer
Ok Deb
Decide on about three concentrations of salt water. Maybe 1%  5% and 10%  Use four pots and potting soil. get some bean seeds. They are easiest to grow. Plant and water with the three concentrations and plain water in the 4th pot. Be sure of your controls . the only thing that should vary is the solutions. All else is the same: amount of water and light and soil
Keep me informed