Q: Do you have any suggestions for my science experiment?
Dionaea
I have been the judge of several science fairs for grade school and
high school, and among the various displays there is almost always an experiment on
"do Venus flytraps grow better with or without food?" Another
old favorite is, "Are
crickets better than hamburger?" So if you try these for your
science fair, you certainly will not get points for originality.
Your experiment will probably be a dismal failure, too. Why?
Venus flytraps are so hard to grow that you should not use them
for your science experiment---in the end all your plants will be
near death, and the comparison of bugs vs no-bugs will be irrelevant.
If you must perform such a clichéd experiment on carnivorous plants,
use easier-to-grow plants like sundews
(Drosera capensis, D. spatulata).
You can buy these from the various nurseries on line.
And even these plants are a little
tricky to grow. Use the same horticultural conditions as Venus flytraps for best results.
Even with sundews, it will take a long time (probably too long) before you are likely
to see any effects from different kinds of food sources. Check out this time-line:
Time for your plants to recover from shipping and resume normal grow: 1 month
Time to feed your plants enough food to result in changes: 1 month
Time for your plant to show the enhanced (or deleterious) effects of your feeding: 2 months
Do you really have that much time? Are you willing to risk you science experiment on the assumption that
you can successfully grow these plants? Remember, if these plants were easy to grow, I wouldn't be
compelled to have this colossal FAQ on line!
On the other hand, if you are already a successful carnivorous plant grower and are thinking of using your plants
in a science experiment, I'm sure you already have some ideas of things you might want to try, and are probably
fully aware of the amount of time you will need. If you need a few rudimentary ideas to jump start your
thinking, how about trying to address things such as, "what affects
how quickly Venus flytraps close?" or "can Venus flytraps digest xxx" (where "xxx" is stuff like Tapioca
or chewing gum, etc.).
Otherwise, let me very clear on this---do not ask me for suggestions on your science
experiment. I do not know the many details of your budget, time restraints,
materials constraints, laboratory skills, or equipment. You will have to devise
your science experiment yourself. An experiment you devise yourself will be much
better than one you pulled out of a book (or web site), that we judges have seen done over and over
again.
P.S. Yes, I know this Venus flytrap FAQ entry is just like
my other science project FAQ entry,
but I answer this question so many times via e-mail my eyes have crossed
irreparably...
Page citations: Personal observation.