For one of my science projects, I am planning to make a small methane plant. Its on HOW to make it. So I'm asking what is the independent variable and dependent variable? Your not changing anything, nor measuring the dependent.How do I measure the Independent and the Dependent Variable? Help!?
If you are not measuring anthing then you have no variables.
Your inputs to the systems are:
food (manure, sugar, etc)
bacteria
co-2
outputs are:
methane
oxygen
water
waste
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