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Old 08-28-2005, 08:54 AM
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Default Botany Science Fair Project

Given your chosen topic, I think you should be experimenting with 1 plant and different types of water. What sort of water are you experimenting with? Are you varying the level of acidity of the water? The type of plant should be control variable - meaning that you shouldn't do the experiment with different types of plants.

Do take a look at the Science Fair Coach section for an explanation of what's an independent variable and what's a control variable. Go to:

[url]http://www.all-science-fair-projects.com/science_fair_projects_coach/page4a.html[/url]
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