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Topics > Chemistry > Environmental Pollution

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Are carbon filters less effective when the water contains more chlorine?
The purpose of this experiment was to determine whether the efficiency of a carbon filter decreases faster at higher concentrations of chlorine.

Difficulty: High school

Are waters in urban areas more poluted than in rural areas?
The purpose of this experiment was to determine whether the level of certain chemicals in the tributaries to the Yakima River was different in the rural area of the Umptanum Creek compared to the urban area of the Wenas Creek.

Difficulty: High school

Do detergents affect plant growth?
Plants grow by using water and the sun to make food. We are trying to find out if different types of detergents will affect the growth on a plant. This experiment, if done properly, will give us the answers we're looking for.

Difficulty: Elementary school

Examine how much Carbon Dioxide is produced by different gas sources? This helps us understand the impact of these gas sources on global warming.
The purposes of this experiment is to compare the amount of Carbon Dioxide (CO2) produced by four different sources of gases.

Difficulty: High school

How can plants be used to measure the level of air polution?
How can plants be used to measure the level of air polution?

Difficulty: Middle school

How do Increased CO2 Levels Affect Plant Growth?
The problem with increased CO2 is its affect on global warming. CO2 is not a pollutant but it does trap infrared heat from radiating back into space. This phenomenon is known as the greenhouse effect. This global warming then affects global ecosystems by having effects on water vapor and other climate features. If CO2 levels continue to rise, the results to the planet are difficult to gauge. Som

Difficulty: Middle school

How do oil spills affect marine life?
To demonstrate what happens in an oil spill, fill a glass bottle two-thirds full of water. Add blue food coloring to make the "ocean."

Difficulty: Elementary school

How do phospates affect oxygen levels in water?
The purpose of this experiment is to test the effect of a phosphate on the oxygen levels in pond water. I believe that the phosphate will have an effect on the level of oxygen in the pond water. I think that the pond water with only ten drops of the phosphate mixture will have have more oxygen than the pond water with fifty drops of the phosphate mixture.

Difficulty: High school

How do pollutants affect marine life?
The purpose of this experiment was to discover how pollutants of varying concentrations harm aquatic life. I became interested in this topic when looking through a list of ideas. I thought it would be interesting to see what pollutants were the most harmful to aquatic environments. I am also concerned about pollution of our water because I enjoy many water sports including skiing and swimming.

Difficulty: High school

How much pollution can water take before it becomes unsafe? Does this differ between different water sources?
It has always been a concern of mine that local bodies of water might have fallen victim to chemical pollution as a result of dumping or acid rain. My experiment will allow me to determine the amount of buffer capacity if any is in three local bodies of water.

Difficulty: High school

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