Texture Triangle Worksheet

APES Name_______________________________ Date______________

THE SOIL TEXTURAL TRIANGLE PRACTICE NOTES

1. Soil Profiles – go to this site APES in A Box: Soil Profiles and take notes on the soil horizons: http://www.youtube.com/watch?v=6Kr3Wj7SeSc

2. Soil Triangle and Characteristics—go to this site APES in a Box: Soil Triangle and take notes: http://www.youtube.com/watch?v=VEgHmgnrWzk

3. How to read a Soil Triangle: http://www.youtube.com/watch?v=bAYzoVliNFQ

4. Now it is your turn to use the Soil Texture Triangle.

Soil Textural Triangle Practice Exercises

% Sand % Silt % Clay Texture Name

a) 75 10 15 sandy loam
b) 10 83 7 _______________________
c) 20 20 70 _______________________ Soil Texture Worksheet

Directions: Using your soil texture chart and example, determine the following soil textures using the percentages given.

% sand % silt % clay Soil Texture

example 75 10 15 sandy loam

a) 42 _____ 37 __________________

b) ______ 52 21 __________________

c) ______ 35 50 __________________

d) 64 30 ______ __________________

e) 50 _____ 40 __________________

Now for a challenge!:

f) 36 ______ ______ Clay Loam

g) _____ ______ 42 Silty Clay

h) _____ ______ ______ Loamy sand

i) _____ ______ ______ silt loam

Make your own!!

______ ______ ______ __________________ ______ ______ ______ __________________

WHAT IS THE DIFFERENCE BETWEEN SAND, SILT AND CLAY
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. The composition of sand is highly variable, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the