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.

 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.

DateMagnet No Magnet 11/12 1 cm. Sprout No Sprout 11/14 2 cm. tall 1 cm. Sprout 11/22 Growing straight up 3cm Growing straight up 2 cm 11/29 Growing straight up 5 cm Growing straight up 4 cm

 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

 Radish picture  “Radish”.11/29/2010.theora.com/images/radish.j pg  Magnet picture  “NibMagnet”.11/29/ /nib-magnet.JPG  Project Idea  DoMagnetsAffectRadishPlantGrowth?.11/30/201 0.// Science-Fair-Project.aspx?ProjectID=7&Title= DoMagnetsAffectRadishPlantGrowth?.

 Magnet information  Schwartz, Brian B., and Richard B. Frankel. "Magnetism." World Book Advanced. World Book, Web. 30 Nov  Thanks to…  Julie Cia  Julie Rabin  Mr.Pham