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Others Like “Get Down and Dirty: How Does Soil Change with Depth?”

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Science Fair Project Idea
Plants need nitrogen to grow healthy stems and leaves. Although nitrogen is the most abundant element in the air we breathe, that form of nitrogen cannot be used by plants. Nitrogen contained in fertilizer, on the other hand, is readily taken up by plants. In this experiment, you will compare plants grown without nitrogen fertilizer to plants grown with nitrogen fertilizer. Read more
PlantBio_p012
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision recommended during preparation of nitrogen fertilizer solution
Science Fair Project Idea
Landslides are powerful geological events that happen suddenly, causing fear in people who live in areas with unstable hills, slopes, and cliff sides. Landslides damage the surrounding habitat and can destroy homes in their path. But what causes landslides? Can slides happen on any slope, or do slopes have to have certain characteristics, such as a steep angle and a specific material mass? In this geology science project, you will learn about the different types of landslides and the… Read more
EnvEng_p035
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Time Required Very Short (≤ 1 day)
Prerequisites None.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues.
Science Fair Project Idea
When you think of environmental challenges facing the world, the first things that come to mind might be global warming, or loss of biodiversity, since these are often in the newspapers. A serious problem that you may not have heard about is soil erosion. Why is soil so important? What is the danger of erosion? How can we measure soil erosion? What can be done to prevent it? Check out this project and you can start finding answers. Read more
EnvSci_p012
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Minor injury possible
Science Fair Project Idea
Interested in helping the environment, and don't mind getting dirty? In this project you get to mix it up with earthworms, soil, and various types of organic kitchen scraps. The basic idea is to set up small earthworm colonies to compost different types of food waste. You test the soils in each type to see how diet affects both the earthworm population and the nutrients they put back into the soil. This project takes a little time, but it's worth it. You'll help the environment and learn… Read more
EnvSci_p041
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Time Required Very Long (1+ months)
Prerequisites None
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
Have you ever had to dig a hole in really hard soil? It is a lot of work! In this science project you can make an instrument to test the soil and find out how compacted it is, before you dig! Read more
Geo_p010
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Often, when we think of something that is solid we think about rocks. But in reality, rocks have tiny holes of air inside them. This is called porosity. In this science project you can find out what it means to be "solid as a rock!" Read more
Geo_p012
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
How many bits of information are in a digital photo? It depends on how many possible colors there are. Learn how to choose the right number of colors and bits to post your photo on the web or send it to your best friend. Read more
Photo_p009
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Specialty Item: Requires Adobe Photoshop or similar photo editing software
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Foundations for many types of structures rest on soil. This project shows how you can investigate the bearing capacity of different types of soil. Read more
CE_p009
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Soil liquefaction is a phenomenon where soil that is saturated with water suddenly loses its strength and behaves like a liquid. This usually occurs due to sudden, large stresses on the soil — for example, from an earthquake. This can be very dangerous for buildings sitting on top of the soil, as they can suddenly sink into the ground! The embedded video explains soil liquefaction in more detail. Is there a way to prevent soil liquefaction? Do you think adding… Read more
Geo_p002
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Time Required Average (6-10 days)
Material Availability Readily available
Cost Low ($20 - $50)
Science Fair Project Idea
Like humans, plants can be negatively affected by overcrowding. Unlike humans, plants cannot get up and move to a new environment or explore how to utilize new resources. This experiment will explore the effects of crowding (population density) on the growth and health of plants. Read more
PlantBio_p011
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- Less Details
Time Required Very Long (1+ months)
Prerequisites Background research on biomes, ecosystems, population density, and the basic needs of plants.
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
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