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While most of us do not give much thought to water quality, serious aquarists are keenly aware of the importance of maintaining water quality. But while aquarists are careful to maintain ph, nitrates, and ammonia levels, many do not give the same attention to the level of dissolved oxygen (DO). An understanding of the relationship between temperature and DO is the subject of this science project.
Difficulty
Global warming occurs when greenhouse gases in the planetís atmosphere trap and retain heat, altering the earthís climate. Plants are affected by higher greenhouse gas levels, even though they consume carbon dioxide and sunlight to make energy. This science project encourages students to compare the growth of a plant under natural conditions with a plant that has been exposed to extra carbon diox
Pesticides are necessary to keep our agricultural plants safe from insect infestation. Natural pesticides are increasingly preferred, as they reduce the number of chemicals that are released into the environment. In this experiment, you will examine whether biopesticides are as effective as their chemical counterparts.
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
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
The purpose of this experiment was to determine which automobile anti-freeze is most biologically safe.
Difficulty: Elementary school
This simple experiment serves as an introduction to the greenhouse effect. Students can see for themselves the effects of a greenhouse, and relate this understanding to what occurs in our atmosphere.
Difficulty: Elementary school
The amount of trash placed in landfills and sanitary dumps is a major concern. Let's look at how much space trash really occupies.
Difficulty: Elementary school
This activity shows you how to make an oil "tanker' which can be used to clean up a vegetable oil "spill".
Difficulty: Elementary school
There are a wide variety of pollutants that can affect water and the plants and animals that live in the water. This pollution can be divided into three groups: chemical pollution, thermal pollution, and ecological pollution. Since not all pollution is human produced students need to understand that there are sometimes "natural" reasons for some pollution.
Difficulty: Elementary school
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