Soil Science Crossword Puzzle

QUESTIONS LIST:

• sand : the coarse particle that is the largest of the three particle sizes
• silt : the middle particle size
• clay : the smallest particle size
• loam : combination of all three soil particles
• peds : naturally occurring soil aggregates
• clods : clumps of soil caused by tillage
• organic matter : soils that are black or brown in color are often high in this.
• leaching : removal of nutrients from soil by water
• ribbon test : rubbing the soil in between your fingers to determine its structure.
• soil : top layer of the earth's surface
• parent material : the layer of unconsolidated material where soil is developed
• topsoil : another name for the a horizon that supports plant growth
• subsoil : another name for the b horizon
• weathering : process that breaks down rocks and other earth materials into smaller pieces.
• mechanical weathering : weathering that is done without altering the chemical composition
• chemical weathering : examples are water, oxygen, carbon dioxide and acid rain
• erosion : the process where natural forces move weathered rock and soil from one place to another.