The purpose of my project was to model how motor oil released to a lake impacts the organisms that live there. Whole effluent toxicity WET testing is used by regulatory agencies to determine how clean an effluent must be before release to the environment.
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.
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.
Experiments on plant growth using only caffeine have resulted in the plant leaves becoming wrinkled, turning brownish and exhibiting retarded growth.It is the responsibility of the Regional Science & Engineering Fair Directors, Scientific Review Committees, and Institutional Review Boards to develop a complete knowledge and understanding of the ISEF & SSEF Rules.
Best Abstract Examples. Anytime students are required to write an APA style paper, they start googling for examples of abstract online. While some practical, real-life samples can prove pretty useful in your research, you still have to understand that even an amazing example abstract will be of no use if you do not understand why you need this section in your paper, or what purpose it serves.
Find a Science Fair Project Idea. Looking for inspiration for a science fair project? Science Buddies has over 1, Project Ideas in all areas of science. The Topic Selection Wizard tool can help you find a project you will enjoy!
Following are some weird, strange, cool, uncool, fun, funny, bizarre, unusual, or just slightly different ideas for science fair projects.
Most of these are very half-baked, so you would need to figure out how to develop a testable hypothesis and perform experiments. A survey of nearly Internet users tested associations between personality traits, past behavior, and viewing cat-related media online. • The study also examined Internet users’ motivations for consuming cat-related content, including emotion regulation and procrastination.
You have worked for over a month researching, developing, and performing your science fair project. Your board is all ready to go. Your talk is prepared. But the thought of having to write a science fair abstract strikes fear into your heart.
These three easy steps will help you to proceed with confidence.