# Does Too Much Water Help Plants Grow More Rapidly?

Topics: Seed, Plant, Water quality Pages: 3 (811 words) Published: September 7, 2008
Does too much water help plants grow more rapidly?

Hypothesis

I think a plant given an unlimited supply of moisture will grow more rapidly than a plant given the recommended amount of water.

To prove my hypothesis I will use the following materials:

Bean and mielie seeds
Cotton wool
Tap water

My preparation includes:

Putting one cotton wool ring on six separate saucers
Placing one bean and one mielie seed on each ring
Covering the seeds with another ring
Label three as A and three as B

Group A got 10ml water as a start and from there on 4ml three times a day. Group B got 50ml water that was kept constant throughout the experiment.

By placing both on the same windowsill means it will be a fair test.

Independent variable: amount of water given
Dependent variable: the growth rate
Controlled variable: environment and climate

The reason for using a hydroponics method is because I can’t control the forming of salt crystals in soil which can interfere with my experiment. There’s also the possibility of weeds sprouting and nutrients may vary.

My aim is to prove that the “recommended amount of water needed” isn’t that all important.

Experimental Procedure

Get six of the same saucers, 12 cotton wool rings and medium sized bean and mielie seeds (Six of each) •Place a cotton ring in the middle of each saucer and one bean and mielie seed on top of it, the same distance apart •Use the other six cotton rings to cover the seeds, placing it exactly on top of the bottom one •Divide them into 2 groups, labeled A and B

Start group A’s watering process with 10ml tap water. From there on 4ml, three times a day for each saucer. (7:00am, 1:30pm and 5:00pm) •Group B’s water states should be kept constant at 50ml to prevent a shortage of H2O. •After 2 weeks, you should start seeing some changes occurring in group A. •After close observation for 4 week, you should have enough data to draw up a conclusion.

I chose...