can you give very uncommon but easy to do investigatory project?

Question

probably about common plants.............

Answer 1

This is cool, but not about plants. I did it with little aquarium snails and with sow bugs. Snails or slugs would work better. It investigates the effect of a magnetic field on the movement of snails (or whatever).
Get two STRONG magnets from a hardware store or some such place. DON.T get them near any watch, clock, delicate electronic instruments, VCR tapes, CD's or anything like that! Very Bad!
Get a magnetic compass to determine the direction of magnetic north/south. Get a piece of paper and draw a line, then line it up with magnetic north/south (not "true" north/south; it's the magnetic field that matters). Draw another line perpendicular to and crossing this line. Take the 2 magnets and determine (using the compass) which side is N and which side is S. Set them up facing the same way, so they attract, not repel, each other. Set one on each side of the first line, sitting on the second line, leaving enough space between them for the snails to go through and move to the right or left. Thus the snails will be passing thru a strong magnetic field.
One by one,set the snails down on the north/south line pointed so that it is headed toward the space between the magnets. Record whether it goes straight through or turns to the right or to the left; this will also be toward the N or the S pole of the magnets. Afterward, do the same again but without the magnets.
Looking at your data, does it appear that the snails in the magnetic field turn one way more often than they do without the magnets? The principle is that when a "conductor" (such as the water-and-electrolyte rich snails) passes through a magnetic field, it produces an electric current, which in turn may produce an effect upon the snail's nervous system.