Homework Help: Science

Posted by Raven on Tuesday, September 8, 2009 at 6:56pm.

Q: do tomato plants grow better with fertilizer

Hypothesis: I think if i give the tomatoes fertilizer they will grow taller

Contolled Experiment
1. Control group
list factors

2. Experimental
Independant Variables

3. DATA COLLECTION

Science - SraJMcGin, Tuesday, September 8, 2009 at 6:58pm
Try here:

http://www.google.com/search?q=do+tomato+plants+grow+better+with+fertilizer&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

Sra
Science - PsyDAG, Wednesday, September 9, 2009 at 2:42pm
You have only one independent variable -- giving or not giving the fertilizer -- with the experimental group getting the fertilizer. the height of the plants is the dependent variable.

As much as possible, you want to match the two groups according to other variables that effect growth (e.g., watering, sunlight, seed quality, etc.).

I hope this helps a little more. Thanks for asking.

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