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Designing indicators for ecological effects of bioremediation
Pentachlorophenol-contaminated soil was amended with a strain of Pseudomonas capable of biodegradation of the pollutant. After bioremediation was complete, soil was tested for indicators of ecological condition. Several direct-toxicity measures (plant seed germination and root elongation, earthworm survival) showed the bioremediated soil to be indistinguishable from clean reference soil.
CategoryMicrobiology > Fungi
Difficulty: High school
Understanding the health effects of the ozone
This paper tests whether individuals engage in avoidance behavior in response to information about pollution, and whether this behavior explains the lack of epidemiological evidence of an association between ozone and health. To ascertain whether ozone affects health, I first test whether “smog alerts” lower the incidence of asthma hospitalizations in Southern California from 1989 through 1997.
CategoryEnvironmental Science > Global Warming
Difficulty: High school
What is the effect of acid rain on Lichens?Featured science project
The purpose for this experiment is to investigate the effect of acidic solution on fruticose, foliose, and crustose lichens. This experiment is being done to model the effect of acid rain on lichens in the natural environment and to use this information to determine if these lichens can be used as bioindicators.
CategoryMicrobiology > Fungi
Difficulty: High school
How much do students know and feel about prejudice?
We would like to do a survey research project on what students know and feel about prejudice. Our hypothesis states that the majority of the responses to the factual questions on our questionnaire about prejudice will be answered correctly.
CategoryBiology > Human psychology > Miscellaneous
Difficulty: Middle school
How much does a typical student know about endangered species?
We would like to do a survey research project on student knowledge about endangered and extinct animals. Our hypothesis states that the majority of the responses to the factual questions on the questionnaire will be correct.
CategoryBiology > Human psychology > Miscellaneous
Difficulty: Middle school
How does acid rain affect the growth of plants?Featured science project
The purpose of this experiment was to determine to what degree acid rain affects the growth of certain plants.
CategoryBiology > Botany
Difficulty: Elementary school
What makes stars twinkle?Featured science project
Have you ever wondered what makes a star twinkle? On the next clear night look at a bright star. How many blinks does it make in 10 seconds? Look at the moon, an airplane or a bright planet at night. Do these objects twinkle?
CategoryPhysics > Astronomy
Difficulty: Elementary school
What sort of blade design works best for windmills?Featured science project
The purpose of this experiment was to determine which windmill blade sizes, shapes, and angles were most efficient at producing an electrical current from a generator.
CategoryEngineering > Miscellaneous
Difficulty: Middle school
What is the most efficient angle for windmill blades?Featured science project
My first hypothesis is that the closer the blade is to 45 degrees the more electricity the windmill will produce.
CategoryPhysics > Forces and Motion
Difficulty: Elementary school
Is soil a type of electrical system?Featured science project
This very interesting experiment will help you prove whether soil functions as an electrical system.
CategoryChemistry > Miscellaneous
Difficulty: High school
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