Soil Textural Triangle
Authored by Sana Chakra
Other Sciences, Science
9th - 12th Grade
Used 124+ times
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About
This quiz focuses on soil science, specifically the classification of soil texture using the soil textural triangle, and is appropriate for high school students in grades 9-12. The questions assess students' ability to interpret soil composition data and classify soil types based on the relative percentages of sand, silt, and clay particles. Students must understand that soil texture classification depends on the proportional relationships between these three particle size categories, and they need to be able to navigate the soil textural triangle diagram to determine soil classifications such as clay loam, sandy loam, silt loam, and clay. The quiz also requires mathematical reasoning skills as students calculate missing percentages when given two of the three soil components, reinforcing the concept that sand, silt, and clay percentages must total 100% in any soil sample. Created by Sana Chakra, an Other Sciences teacher in the US who teaches grades 9-12. This quiz serves as an excellent tool for reinforcing laboratory learning experiences where students have examined soil samples and learned to use the soil textural triangle. Teachers can implement this as a follow-up assessment after hands-on soil analysis activities, use it as a warm-up to review previous lessons on soil composition, or assign it as homework to strengthen students' ability to interpret soil data independently. The quiz effectively supports formative assessment by allowing teachers to gauge student understanding of soil classification before moving to more advanced topics in earth science or environmental science. This assessment aligns with NGSS standards HS-ESS2-2, which addresses the role of soil composition in Earth's systems, and supports mathematical practices outlined in CCSS.MATH.CONTENT.HSA.CED.A.3 as students work with systems where components must sum to a whole.
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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
40 % Sand
50% Silt
10% Clay
Clay
Clay Loam
Silt Loam
Sandy Loam
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
70 % Sand
15% Silt
15% Clay
Sandy Loam
Clay
Silt Loam
Clay Loam
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
35 % Sand
15% Silt
50% Clay
Clay Loam
Sandy Loam
Silt Loam
Clay
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
20 % Sand
60% Silt
20% Clay
Sandy Loam
Silt Loam
Clay Loam
Clay
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
30 % Sand
40% Silt
30% Clay
Clay
Sandy Loam
Clay Loam
Silt Loam
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the Texture for Silt Based on the Texture: SILTY CLAY:
5% SAND
50% CLAY
45%
38%
36%
55%
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the Texture for CLAY Based on the Texture: Clay Loam
27% SAND
35% SILT
33%
45%
38%
55%
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