This document appears to be a quiz for a soil science lab covering physical and chemical properties of soil. It contains 10 multiple choice or short answer questions about soil texture, water retention, sample collection, case studies, soil composition, and pH testing. Students are asked to identify their soil texture based on physical analysis and provide evidence from a procedure. They are also asked questions about water retention, limiting reagents, and chemical indicator colors.

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ties-of-soil-lab-quiz/
1. What is the name of your soil's texture? Remember that soil texture is a scientific
classification, and not a descriptive term. (3 points)
How did you decide on this texture classification? Cite evidence about how your soil
behaved and felt when you did your soil texture analysis using the criteria from the USDA
flowchart that you used (i.e., did your soil form a ball, a ribbon, and was it gritty or
smooth?) to help you to determine the texture of your soil. (7 points)
2. Upload a picture of your soil sample here from your computer. Make sure your name is
IN the picture.
If you worked with (a) lab partner(s), please make sure all of the names in your group are
in the picture. Each member of the group may upload the same picture
3. Pre-lab reading: Soil texture refers to the _________________.
4. Physical properties of soil: If you added 100 mL of water to a soil, and 55mL of water
drained from the soil, what is the % water retention of this soil?
5. Water Retention video: Based on your observation of these two different soils, do soils
with high sand or high clay content drain quickest?
6. Collecting your sample: How did you ensure that the sample of soil that you used to
analyze for different physical and chemical properties was the same (homogeneous) for
each test?

2. 7. Case study question. You collect a soil sample that when wet can retain a ball shape, a
long ribbon without breaking, and is smooth when you rub it between your fingers. Based
on this evidence, it is most likely a
8. Pre-lab reading: Which of the following elements is NOT considered to a limiting
reagent for growth that is often added to soil fertilizers?
9. After performing the "USDA Qualitative Test for Soil Texture", I determined that my soil
texture was _______________. Type in your soil texture and check that the spelling is
correct from the chart. Leave spaces between words. For example, type "clay loam" with
spaces between the words and no caps (and without the quotes, of course).
10. Loam soil is composed mostly of which soil particle size?
11. Water retention video. Based on your observation of these two different soils, do soils
with high sand or high clay content hold the most water?
12. Chemical properties of soil: The cap and capsule for the pH test was ___________ in
color