Investigatory project effecet of coffee on a plant

With so much coffee being consumed on a daily basis, it's encouraging to learn that there is a productive use for all those grinds. Next time you make a cup, save your coffee grounds and add them to the soil in your garden. For best results, use organic coffee if you will be consuming the fruits or vegetables you fertilize. Aesthetically, coffee grounds can be used to make elegant black borders in flower gardens.

Investigatory project effecet of coffee on a plant

There are also some plants that are not affected by the presence of caffeine in the soil. Caffeine can be introduced to the soil by sprinkling grounded coffee over the soil, adding leftover coffee to the pot or watering with a caffeine solution made by dissolving a caffeine tablet in water. The grounded coffee is actually organic matter and will help in adding nutrients to the soil.

It will also attract worms that feed on the grounded coffee and at the same time help to aerate the soil. The mung beans watered using the coffee mixture will grow the fastest. The independent variable is the solution used to water the plants — water, caffeine solution and a coffee mixture.

The dependent variable is the growth of the mug bean plants. This is determined by measuring the height of the plants every day using a ruler.

The constants control variables are the size of the pot, the concentration of caffeine and coffee, the amount of sunlight, the temperature of the environment which will remain at room temperature and the amount of water added daily. Fill the 3 pots with equal amounts of soil.

Plant ten mug beans in each pot and allow them to germinate. Additional seeds can be placed in the pots in case some of the seeds do not germinate; the additional plants can be removed later.

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For the first 5 days, water the 3 pots with tap water only. Allow the seeds to germinate for the first 5 days. After 5 days, measure the height of the 10 plants in each pot.

Add up the individual heights and divide by 10 to obtain the average height. Record the average heights in a table, as shown below. Prepare the caffeine solution by dissolving 10g of caffeine tablets in ml of water in a beaker.

Over the next 10 days, water the pots once a day with ml water, caffeine solution or coffee mixture, according to the labels on the pots. Measure and calculate the average height of the mung bean plants every day for the next 10 days. Record all calculations in a table.

The hypothesis that mung beans watered using a coffee mixture will grow the fastest has been proven to be true. The effect of caffeine on plant growth is still a subject under study. Using grounded coffee in garden lawns is a common practice to make plants grow faster.

However, coffee also contains other ingredients like potassium and phosphorous, which are known to enhance plant growth.

Investigatory project effecet of coffee on a plant

Experiments on plant growth using only caffeine have resulted in the plant leaves becoming wrinkled, turning brownish and exhibiting retarded growth.Coffee is a brewed drink prepared from roasted seeds, commonly called coffee beans, of the coffee plant.

They are seeds of coffee cherries that grow on trees in over 70 countries, cultivated primarily in Latin America, Southeast Asia, and Africa. Foreign Related Studies The average American coffee drinker consumes about cups of coffee a day,5 but extensive research has found that higher volumes - as much as 4 to 12 cups daily - can help prevent most major killers, including cardiovascular disease, cancer, diabetes, liver disease, and Alzheimer's disease.

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Caffeine and Coffee - science fair projects and experiments: topics, ideas, resources, and sample projects by scientific field. The Effects of Various Coffee Bean Roasts on the Heart Rate and Longevity of Daphnia magna add value to improve plant growth and help the environment.

May 17,  · Approximately 60% of the world's coffee beans are sprayed with potentially harmful pesticides.

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Coffee Grounds as a Mulching Agent. Coffee’s breakdown materials can be used as a mulching and fertilizing agent for gardens. Aesthetically, coffee grounds can be used to make elegant black borders in flower leslutinsduphoenix.coms:

The Effect of Caffeine on Plant Growth | Science project |