L. Pores--Tiny openings for absorbing and discharging fluids.
2. Scum (Humus)-A part of the soil containing fungi and
bacteria that break down different parts of plants.
3. Sand-Found on beaches and in deserts, loose gritty grains of
d
isintegrated rock.
4. Decomposition-To break down into basic parts; to rot
5. Aerate: To expose to air.
6.
Capillarity-Movement of water upward or sideways through
sma ll spaces in the soil.
7
.Loam-Soil with sand, clay, silt, and organic matter all mixed
together just right.
8. Compost-A mixture of decomposing vegetation and other
organic debris used for fertilizing soil.
9. S¡lt-A fine grained-sandy sediment carried or deposited by
water; mud formed from tiny pieces of rock.
Evaporation-drying up of water from wet surfaces.
clay-- A firm, plastic earth used in making bricks and
L0.
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cera m ics.
t2.
L3.
Absorption-the process by which water enters pores.
soil-The top layer of the Earth's crust. Made from
weathering of parent rock under the ground.
Percolation---The process of water going ¡nto the soil and
moving downward through the soil by gravity.
Root Ball-Tight clump of soil containing living roots.
Texture-The way something feels: coarse, smooth, soft,
slippery.
Dispersion-Breaking up or scattering of particles.
14.
15.
L6.
17.
Understanding and Solving Lab Problems
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E-6: What is the composition of soil?
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Remember every graph needs the following:
Title
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Label your axes correctly and label your units
Be able to plot data correctly
Create a key
Be able to analyze your data on the graph
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