Testable question:
Will a radish plant grow towards a magnet?
Hypothesis:
If we put a magnet next to a radish plant the radish
will grow towards the magnet because we think
since a radish grows shorter next to a magnet
then it will grow towards a magnet too.
Background Information:
-Radishes grow shorter next to magnets
-Magnetism is the force that electric currents exert
on other electric currents
 Experimental
Variables:
 One of the radishes will have a magnet
next to it, and the other wont
 Control Variables:
 Same temperature, amount of water, pots,
amount of sunlight, radish seeds, and soil.




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
6 radish seeds in
each pot
1 magnet that holds
100 pounds
2 pots
800 milliliters of soil in
each pot
1 2-foot piece of rebar
2 feet of duct tape






Gather all materials: 2 pots, 1 magnet, 1 pack of
radish seeds, 1 piece of rebar, duct tape, and
soil
Put 800 milliliters of soil in each pot
Put 6 radish seeds ½ of an inch down in the soil
Get the piece of rebar and duct tape the magnet
to the rebar. Then put the piece of rebar in the
soil so the magnet is facing the radish.
Water every other day.
As it grows, if the radish grows towards the
magnet, record how much every week.
Date
Magnet
No Magnet
11/12
1 cm. Sprout
No Sprout
11/14
2 cm. tall
1 cm. Sprout
11/22
Growing
Growing
straight up 3cm straight up 2 cm
11/29
Growing
Growing
straight up 5 cm straight up 4 cm
bs
er
va
tio
n
O
1
bs
er
va
tio
n
O
2
bs
er
va
tio
n
O
3
bs
er
va
tio
n
4
O
6
5
4
3
2
1
0
Magnet
No Magnet
The plant with the magnet ended up not
growing towards the magnet, but it did grow 1
cm. taller than the plant without the magnet.
Compare: Both plants grew straight up; Both
plants looked the same
Contrast: The plant with the magnet grew 1 cm.
taller than the plant without the whole time
The radish plant with the magnet grew 1 cm.
taller than the radish without the whole time.

Our hypothesis was incorrect because the radish
plant with the magnet grew straight up
 The rebar that was holding the magnet up was
metal, so it might have affected the magnetic
field
 Instead of using a piece of rebar we would use a
wooden stick
 Our recommendations are that magnets don’t
have any affect on plants

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
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Radish picture
“Radish”.11/29/2010.theora.com/images/radish.j
pg
Magnet picture
“NibMagnet”.11/29/2010.www.thomasnet.com/…
/nib-magnet.JPG
Project Idea
DoMagnetsAffectRadishPlantGrowth?.11/30/201
0.//www.free-science-fair-project.com/FreeScience-Fair-Project.aspx?ProjectID=7&Title=
DoMagnetsAffectRadishPlantGrowth?.
 Magnet
information
 Schwartz, Brian B., and Richard B.
Frankel. "Magnetism." World Book
Advanced. World Book, 2010. Web. 30
Nov. 2010.
 Thanks to…
 Julie Cia
 Julie Rabin
 Mr.Pham