Contents Page number
Title ----------------------------------------------------------------------------------1
Abstract------------------------------------------------------------------------------1
Problem------------------------------------------------------------------------------2
Question --------------------------------------------------------------------------- 2
Research---------------------------------------------------------------------------- 2
Hypothesis------------------------------------------------------------------------- 2
Materials--------------------------------------------------------------------------- 2
Procedures-------------------------------------------------------------------------3
Constants---------------------------------------------------------------------------3
Independent variable (IV) ----------------------------------------------------- 3
Dependent variables (DV) ----------------------------------------------------- 3
Graph -------------------------------------------------------------------------------4
Method----------------------------------------------------------------------------- 4
Results------------------------------------------------------------------------------ 5
Conclusion------------------------------------------------------------------------- 5
Bibliography----------------------------------------------------------------------- 5
Discussion-------------------------------------------------------------------------- 5
Acknowledgement--------------------------------------------------------------- 5
Pictures-----------------------------------------------------------------------------6
Effect of saltwater on growth of vigoro®
ABSTRACT:
Effect of saltwater on growth of vigoro®
The purpose for this experiment was to determine the effect of saltwater on the growth of a vigoro grass seed. Since freshwater grows a plant best, it is hypothesized that if too much saltwater is put in the plant it will die.
Vigoro grass seed was bought from The Home Depot® store to use as my plant in the experiment, then some cups were bought from Party City, and some bottles to water them with, It was also drilled at the bottom of the cup, so that the soil of the plant would not be muddy. This was done so that the soil would not be muddy, and deny the vigoro® grass seeds growth.
When the preparations were done, the vigoro® grass seed was planted. The planted experimental seeds were watered with saltwater, while the control with freshwater. The plants were waited upon to grow, but only the control grew at the 4th day. The experimental group was waited upon to grow too, but they didn’t grow.
Results showed that a vigoro grass seed can’t be grown with saltwater, but can only be grown with freshwater. My hypothesis was correct. The experiment could be repeated many times on other grass seeds.
The information from this study can be used to help farmers or people who plant grass seeds in their homes. It was hoped that saltwater could be used to plant the grass seed, so that they do not need to use freshwater a lot. They could also use this experiment to help them by not planting a grass seed where there is a lot of salt concentration in the soil.
Works sited: Plant Biology, McGraw- hills, James E. Bidlack, Shelly H. Jansky, 2011, edition 12, appendix 4, pp 576-577. Http: //science.yourdictionary.com/. Holt, science &technology, life science, National Science Teachers Association, 2004, chapter 20, pp. 486-489. U.S. Geological Service: Fresh Water. U.S. Geological Service: Salt Water. World book online, keywords: freshwater, saltwater.
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PROBLEM: “Water is one of the key common substances required by all living things in order to sustain life1,2,3”. We all know that plant need water to survive, and there are many sources in which you can get water3. The problem is how do we know the right amount of salt in water to grow a plant?
HYPOTHESIS: If there is too much salt in the water being given to the vigoro grass seed, then the vigoro grass seed will die.
QUESTION: The question is what is the maximum amount of salt that can support the growth of a vigoro grass seed? My goal is to find the maximum concentration of salt that can support the growth of a plant.
RESEARCH: This project was made to see how different concentration of salt in water can affect or help the growth of a plant. Freshwater actually contains small amounts of dissolved salt4,5,6 since the concentration of salt in water used for the growth of a plant varies, it will be interesting to know if it is only the little amount of salt in the water already that will support the growth of a vigoro® grass seed growth or if a large amount of salt in water can also support the growth of the vigoro® grass seed.
MATERIALS: ▪ vigoro® ▪ Iodize table salt ▪backyard soil ▪ Tap water ▪ Small cup
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INDEPENDENT VARIABLE: The independent variable is what is changed or varied during the experiment. In this case the amount of iodized table salt dissolved in the water used to water the vigoro® seed is the independent variable.
DEPENDENT VARIABLE: The dependent variable is what was measured due to change in the independent variable during the experiment. In this case it is the height of the growing vigoro® seed.
CONSTANTS: The constant variable is what was giving to all the experiment in the same amount or size or time. In this case constant variable include amount of water giving, exposure to light, type of cup and soil used, time of measurement.
PROCEDURES: Eight disposable cups was filled with loamy backyard soil to about 5cm full. After about 24 hours when the cups has reached room temperature, half tea spoon full of vigoro® seeds were scattered on the cups. Two cups was selected at random as control. The other 3 pairs of cup were used as experimental variables. The control receives 3 table spoonful of tap water per day, while the experimental group receive same amount of salt water. The salt water was prepared in 2, 4 and 6 table spoonful of iodized salt added to the 200 ml of tap water.
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GRAPH: TO BE MOVED HERE
METHOD: Control/ cup A Cup B Cup C Cup D
In this experiment I prepared 200ml of freshwater for the control/Cup A into a bottle, the control group is given 3 tablespoons of the freshwater each time it is watered. I prepared 200ml of water for Cup B, but added 2 tablespoons of iodized salt to the water. Cup B is going to get 3 tablespoons of saltwater each time it is watered. I prepared 200ml of water for Cup C, but it has 4 tablespoons of iodized salt added to the 200ml of water prepared for it. Cup C is going to get 3 tablespoons of saltwater each time watered. I prepare 200ml of water for Cup D, but added 6 tablespoon of iodized salt into the water. Cup D is going to get 3 tablespoons of saltwater each time it is watered.
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RESULT: The original purpose of this experiment was to see how grass seeds germination/ growth is affected by giving it different concentration of salt in water. The results of the experiment was, since there was excess salt in the grass seeds it stopped/ denied the growth of the vigoro® grass seed.
CONCLUSION: The conclusion is that saltwater is harmful to the growth of vigoro® grass seed. The hypothesis that too much salt water will kill vigoro® grass seed is supported. In the future test will be done to find the highest amount of salt water that vigoro® grass seed can tolerate.
BIBLIOGRAPHY:
Plant Biology, McGraw- hills, James E. Bidlack, Shelly H. Jansky, 2011, edition 12, appendix 4, pp. 576-577. Http: //science.yourdictionary.com/ Holt, science &technology, life science, National Science Teachers Association, 2004, chapter 20, pp. 486-489. U.S. Geological Service: Fresh Water. U.S. Geological Service: Salt Water. World book online, keywords: freshwater, saltwater.
DISCUSSION: In this experiment I learnt that saltwater cannot be used to grow a vigoro® grass seed, although some mistakes were made, mistakes made were, not doing/having enough trials, not using the same amount of grass seed in each cup. The next time I do this experiment I will try to avoid these mistakes.
ACKNOLEDGEMENT: I would like to thank Dr. and Mrs. Ogunjirin (my dad and mum), Mrs. Calhoun, and Mr. Ferguson for helping me a on this project.
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PICTURES:
Cup A/ Control Cup B
Cup C Cup D