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An Investigation into Effects of Rhizobium Soil Bacteria on Nitrogen Availability
Young scholars identify the control and the variables in the experiment. They describe the growth of plants with and without nitrogen fixing bacteria, then name the bacterium responsible for making nitrogen available to the plant.
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Selecting Soil Organisms in Compost
Students demonstrate that many of the enzyme systems needed to break down--and therefore clean up-society's wastes already exist in nature among the decomposers. They select the best starch-munching organisms by altering the environment...
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Examining Infiltration Rates of Various Soil Types
Students formulate their own hypothesis, determine which variables are important to test their hypothesis, design an experiment in which they collect data. They utilize instruments and tools to measure, calculate, and organize data.
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Urban Impact on Chollas Creek (California): A Field Study
Students, in groups, take samples from a creek and keep a field journal on their samples. They also perform tests on their samples.
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"Tri-County" Project--Ogallala Aquifer
Young scholars explore the Ogallala Aquifer in the state of Nebraska. The signs of pollution found are examined and the data classified.
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Soil, Forest, and Land Conservation
Learners discuss the demands on the rainforest and devise a management plan that satisfies competing uses. They then construct a diorama to show the location of the various sites.
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Soil, Forest, and Land Exploitation
Students debate over the cutting of rainforests in order to put people to work. They then brainstorm ways it may be possible to provide jobs for people and to preserve the rainforest.
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Cows, Worms, and Compost
Students study decomposition. In this decomposition lesson, students discuss the background information about decomposition. Students then complete the 'Chew It Twice' worksheet.
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Infiltration
Learners investigate how the amount of water that can infiltrate into the soil is influenced by precipitation factors and the nature of the soil. The precipitation factors are type of precipitation, amount, duration and intensity of...
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DON'T TREAD ON ME
Pupils explore how the habits and practices of people affect the soil and growth of plants. They are introduced to the phrase "soil compaction." Students play the Soil Particle Game in the related activities section. They go outside and...
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Food Chains And Webs
Learners investigate the concept of soil and all its components. They collect samples from a local site and transplant it into a terrarium. Students identify the organic elements, clay ,silt, and other forms of debris. They also identify...
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Herb is the Word
Students graph the data collected on seedling establishment and
survival for each soil type over a 6 week period. Each lab group graphs data
gathered from one plant. They choose a color for each soil type and create a key for the...
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Space Science: A Scoop of Moon Dirt
Students discover soil characteristics and how it is formed on Earth and the Moon by examining local samples to a lunar simulant. They replicate the effects of wind erosion by scraping dry bread with sandpaper. Students use rocks and...
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Erosion Explosion
Ninth graders explore soil erosion. Through a class discussion, they examine soil conservation methods. Given a potted plant, 9th graders observe the effects of erosion when water is poured over the soil. Students brainstorm terms...
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Molecular Origami
Students construct an origami models of different molecules. In this chemistry lesson, students explain what expansive soils are made up of. They discuss what happens when this expansive soil expands or shrinks.
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Activity #4 Ground Water Model In a Jar
Pupils devlop a model, which they illustrate a water table and allow for the discussion of common terms and illustrate what those terms mean. They comprehend that a flow rates, removal of contaminants, and the amount of water stored are...
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Layers of The Past
Sixth graders identify methods archaeologists use to date soil layers. They interpret soil profiles and discuss the examination of soil at a dig site. They discuss texture and color of soil.
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Specific Heat and Insulation
Students measure the air and soil temperatures at designated times. They graph the temperatures of each on one piece of graph paper with different colors. Students compare the information for the two line plots and analyze their results...
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Hold on Tight!
Learners explore the relationship between plant roots and the soil in which they grow. They examine photos of uprooted trees and desert areas and
conduct experiments designed to highlight this mutual relationship between roots and soil....
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Vermicomposting
Fourth graders explore insect life by viewing a soil presentation in class. In this composting lesson, 4th graders read assigned text about the process of composting soil and the necessity of soil in plant life. Students view video clips...
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LOSING GROUND
Students will observe wind erosion and how crop residue prevents erosion.Point out the three kinds of fields to the students. Do as much or as little instruction as needed to explain the pan with crop residue. Conservation tillage...
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Erosion
Fifth graders study what erosion is, what causes it, and ways to slow its progress. They complete an experiment that depicts soil moving down a slope as water is poured on it to show how moving water erodes land. Next, they observe...
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Erosion
Students discover the meaning of the word erosion and discuss effects of rocks and sticks upon the soil. They then work in small groups to construct a model of erosion to make observations and then write them in their science journals.
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Hold on Tight!
Learners explore the close connection between plant roots and the soil in which they grow. They investigate the roots of plants, make models of plant roots using pipe cleaners, and examine photos and images to explore the connection...
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