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Soil Texture and Color

Supporting

Soil Texture and Color

TEKS Objective

The student is expected to examine properties of soils, including color and texture, capacity to retain water, and ability to support the growth of plants.


Essential Understanding

The students know that Earth consists of useful resources and its surface is constantly changing.

Science Background

Dig It! The Secrets of Soil: Smithsonian National Museum of Natural History (website) - Interactives, videos, and activities created for a special Smithsonian exhibit cover a variety of soil-related topics.

Dig It! The Secrets of Soil
Smithsonian National Museum of Natural History, www.si.edu

Physical Properties of Soil: University of Arizona (website) - Soil color is determined by organic matter, drainage conditions and weather. Texture depends on particle sizes. Learn more here.

Physical Properties of Soil
University of Arizona, www.arizona.edu

Interpreting Soil Color: State of Victoria, Australia (website) - Good illustrations and descriptions of soil colors and the factors that influence soil color.

Interpreting Soil Color
State of Victoria, Australia, vic.gov.au

Signature Lesson

Getting To Know Soil: GLOBE (PDF) - Students examine soil and make observations that include color and texture.

Getting To Know Soil
GLOBE, globe.gov

Supporting Lessons

Creating a Soil Map: University of Illinois (website) - Students examine several soil plots to identify properties of soil (e.g., color, texture and components), and also compare and contrast different soil samples.

Creating a Soil Map
Urban Programs Resource Center, University of Illinois, urbanext.illinois.edu

Dig It! The Secrets of Soil: National Association of Conservation Districts (PDF) - A wide variety of engaging lessons on properties of soils.

Dig It! The Secrets of Soil
National Association of Conservation Districts, www.nacdnet.org

Elaboration Lessons and Extensions

Introduction to Soil Lesson Plan: Suite (website) - A simple investigation for elementary school children into the properties of different types of soil.

Introduction to Soil Lesson Plan
by Elizabeth Pace, Suite www.suite.io

Soil Teacher’s Guide: GLOBE Program (website) – Download a variety of beginning through advanced activities on soil.

Soil Teacher’s Guide
GLOBE Program, www.globe.gov

Assessment Ideas

Have students create a “microscope slide” by making three holes in an index card. Cover the holes with clear tape and place a small sample of three different soils on the sticky part of the tape. Instruct students to make hand lens observations, and then draw the soil samples and describe their observations in their science notebooks. Finally, have students write a “compare and contrast” paragraph about the soils.

Literature Connections

The Scoop on Soils. Hatheway, Zarlego, et al. (download free from the Globe Program)

http://globe.gov/k-4/soil

Dirt: The Scoop on Soil. Rosinsky, Natalie M. (ISBN-13: 978-1404803312)

Dirt: Jump Into Science. Steve Tomecek ISBN-13: 978-0792282044)

Clay. Firestone, Mary (ISBN: 0-064-45078-3)

A Handful of Dirt. Bial, Raymond (ISBN: 0-802-78698-7)

Soil. Richardson, Adele (ISBN: 0-736-80954-6)

Soil. Flanagan, Alice (ISBN: 0-756-50035-4)

Related Science TEKS

(4.7B) Slow Changes in Earth Surface
The student is expected to observe and identify slow changes to Earth's surface caused by weathering, erosion, and deposition from water, wind, and ice.

(4.7C) Natural Resources
The student is expected to identify and classify Earth's renewable resources, including air, plants, water, and animals; and nonrenewable resources, including coal, oil, and natural gas; and the importance of conservation.

Related Math TEKS

5.15A  The student is expected to explain and record observations using objects, words, pictures, numbers, and technology.

5.16A  The student is expected to make generalizations from patterns or sets of examples and nonexamples.

Additional Resources

Soils Overview: Soil Science Society of America (PDF) - Detailed information about soil formation, composition, layers, etc.

Soils Overview
Soil Science Society of America, www.soils.org

K-12 Teaching Resources: Dr. Dirt (webpage) - Hands-on, exploratory learning activities based on methods of scientific inquiry, designed to encourage student interest in science, soil, engineering, agriculture and natural resources.

K-12 Teaching Resources
Dr. Dirt, www.doctordirt.org

Dirt the Movie: Common Grounds Media (website) - Movie trailer provides a succinct overview of the importance of dirt. The site also offers additional “dirt” clips and links to other resources.

The Dirt Movie
Common Grounds Media, www.dirtthemovie.org

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