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Old 10-05-2008, 02:13 PM
farmgirl0705 farmgirl0705 is offline
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Question my sciense experiment

i have a science experiment that i need help on...
my experiment is how animal (horse, cow, pig, chicken) waste effects plant growth and i need help on the proceedure description details (i.e. how much waste to put in how much dirt, how much water to put in, etc.)
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Old 10-09-2008, 12:53 PM
Bioscientist Bioscientist is offline
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To set up an experiment, you need to have fixed amounts of everything, then you change one variable. In your case, the variable is the waste from different animals. You add the same amount of soil and water to each plant. You also need a control, where you don't add any animal waste to the plant. When you compare the control plant to the plants with animal waste, you can see the effect of adding waste to the growth of the plant. You can then compare the growth of the plants that had waste from different animals.
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