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Topics  > Biology  > Botany
The effect of vitamin D on plant growth
This science fair project was done to observe the effectiveness of vitamin D on the growth of plants. The science project involved watering radish, green bean and chili plants with different concentrations of vitamin D solution.
Difficulty: High school
The effects of tap water, mineral water, and seltzer water on the germination and growth of radish seeds.
How will tap water, mineral water, and seltzer water affect the germination and the growth of radish seeds? My hypothesis is that radish seeds will best germinate and grow in mineral water. Mineral water may have fewer contaminants that can hurt the germination of the seeds and perhaps this absence will help the growth of the plants. I also think that tap water will have a detrimental effect on bo
Difficulty: Middle school
The relationship between the pH level of soil and plant growth
This science fair project was conducted to examine the relationship between the pH level of soil and plant growth. Specifically, what is the ideal pH level at which Kentucky bluegrass grows? Kentucky bluegrass was grown in soils that had different pH levels (6.0, 6.5, 7.0, 7.5 and 8.0).
Difficulty: Elementary school
The Usefulness of Plant Growth Enhancers
This experiment was conducted to find out the effectiveness of organic fertilizers in improving plant growth. The results of this experiment might help us improve crop yields.
Difficulty: Elementary school
What are bioassays and how effective are lettuce seeds as bioassays?
The idea behind a reference toxicity test is that the test organism, in this case lettuce seeds, will respond in a predictable manner to varying concentrations of a particular chemical compound. At some threshold concentration, all of the test organisms will be killed (or in this case, none of the lettuce seeds will sprout). In solutions that are more dilute, some level of inhibition will occur in
Difficulty: High school
What are the conditions necessary for seed germination?
The following experiments with plants can be used progressively through the plant units in the K-6 science curriculum. They are all based upon growing seeds in a sterilized baby food or Snapple jar filled with 3/4 inch of unflavored gelatin to which a few drops of liquid house plant fertilizer has been added for nutrients.
Difficulty: Elementary school
What effect do magnets have on the growth of seedlings?
The purpose of this experiment is to determine whether magnets have an effect on the growth of radish seedlings. I became interested in the study of the effect magnets, when I discovered that magnets could make you heal faster. Later I decided that that it would be a better idea to study the effect of magnets on plants to keep it a safe experiment.
Difficulty: Middle school
What effect do tobacco and alcohol have on seed germination?
The purpose of this experiment is to see if tobacco and alcohol have an effect on seed germination. According to the hypothesis the tobacco and alcohol will effect the rate of seed germination. This may be related to the effect alcohol and tobacco have on humans.
Difficulty: Elementary school
What effect does gold dust have on radish seeds?
The purpose of this experiment is to see what effects gold powder has on the growth of radish seeds, if any. It is predicted that the larger amounts of gold will not increase the germination rate of the radish seeds. It is predicted that the larger amounts of gold will not increase the germination rate of the radish seeds.
Difficulty: Middle school
What happens to plants when their environment gets over-crowded?
What do you think will happen if the plants are too close together? Will there be enough food, water, and sunlight. What else might be in short supply?
Difficulty: Elementary school
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