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#16 |
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DIS Veteran
Join Date: Aug 2007
Location: Georgia
Posts: 6,546
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My DD will be starting her science fair project soon. The teacher said they should have duplicates of everything.
My DD is also doing something with plants. I can't remember exactly what it involves but I'll be finding out soon when I have to go buy the stuff with her. LOL I agree with most everyone else that she should keep going with it. And try to do some research into why the plants might be dying. That would look really good even if all the plants don't make it. |
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#17 |
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DIS Veteran
Join Date: Jun 2010
Posts: 710
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After a trip to Disney, my DD decided to do a hydroponics science project as well.
Hers did not turn out very well either, but her plants did grow a little. I can't remember all the details, but she did as pp mentioned and wrote up her results and included information about why the plants didn't grow. She actually wone first place in her school for her division and went to the regional science fair |
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#18 |
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DIS Veteran
Join Date: Sep 1999
Location: Orono, ME
Posts: 3,626
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I spent 25 years in scientific research. ALL results are valuable; "failures" are just information you use to better-design the next experiment! If your child can come up with some explanations as to why the plants didn't grow, that's as good as having a positive outcome. Since neither plant flourished, the problem isn't in the liquid vs. soil medium; there's something else that is adversely effecting the plants' growth. (If it was the growth medium, one would grow and the other wouldn't grow as well). She should come up with a list of variables that would effect the growth of lettuce (temperature, moisture, sunlight exposure, pestilence, etc) and then see if something's been happening with one of these that would effect lettuce growth (is it too hot for the plants to be in their ultimate growth range? Is she watering them too much, or is there something in your water that might be detrimental to the plant?). She can still make a nice display with a chart listing possibilities, growth conditions, etc. Good luck! (I always hated when DD had to do a science project!)
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#19 |
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DIS Veteran
Join Date: Jan 2011
Location: PNW
Posts: 881
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I agree with the others, keep going! Behind any good idea/project/experiment there is a LOOOONG line of failures. As a matter of fact I think that you can gain a lot of knowledge from a failed project. Have her take detailed notes and then come up with some working ideas on what went wrong and how the experiment could be improved upon in the future. Out of curiosity are the plants wilting, stunting, or kind of rotting?
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#20 |
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DIS Veteran
Join Date: Jul 2005
Location: 15 miles away from no where in particular
Posts: 8,844
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3 weeks is enough time to get another plant to start growing. If she's already worked on this for 3 weeks, start with a new plant on the opposite side of the house, with different light conditions. Then she can do a comparison to how well plants grew on the south side vs the north side (or however your house may be set up).
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#21 |
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DIS Veteran
Join Date: Oct 2009
Location: Alexandria, VA
Posts: 761
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If she sticks with the project I would bring some of the soil and water to a garden center/ aquatics store to see if they can check the soil and water for pH, nutrients etc. this way she can discuss more variables that may have contributed to the negative results. You can even purchase your own litmus paper and do pH testing at home (not sure about other at home tests as I don't garden but I know the testing is available at garden centers).
Good Luck!! I am currently a laboratory manager and have worked in scientific research for my career and most experiments fail in science or at least need a lot of optimization, but you learn a lot from those less successful ventures.
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#22 | |
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When I drink I find its easier to watch my children because I see all 3 of them double, so all 6 of them of them take all my attention
Join Date: Feb 2008
Posts: 18,256
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Quote:
Science isn't about getting perfect results, its about understanding the results you do get. I know its 4th grade, and they are kids but its important for them to learn that
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#23 | ||
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DIS Veteran
Join Date: May 2003
Location: Florida
Posts: 1,372
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Thank you everyone! DD read this thread and she is pretty encouraged now to keep on going and with your tips has a better idea of how she can present what happened.
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