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Science Soil Quiz

Science Soil Quiz, Questions and Answers

QuestionAnswer
What are the layers of soil from top to bottom? Topsoil, Subsoil, Parent material, Bedrock
What are the two main categories of the composition of soil? Weathered rocks and organic matter
What are the three different soils? Clay, silt, sand
How do rocks become so tiny? Over time, rocks crack, crumble, and are broken apart by water and wind. Drops of water on a rock may repeatedly freeze and melt.
What is it called when all of the wearing down of rocks by natural forces? Weathering
Which rock is the word used for the largest pieces of rock in soil? Sand
Pieces of rock that are smaller than sand. Silt and clay
List 3 types of weathered rock from smallest to largest. clay, silt, sand
List 3 types of weathered rock from largest to greatest. sand, silt, clay
Where do nutrients in soil come from? (2 sources) organic matter and fertilized
What are organic stuff? Compost, Dead plants, dead animals, decaying stuff, roots
what are inorganic stuff? clay, sand, silt, nutrients, water
What are the 3 nutrients? Nitrogen, phosphorus, potassioum
What are the 3 textures and what do they feel and look like? Grainy, large pieces and gritty, it is sand. Silky, medium pieces and powdery,it is silt. Sticky, small pieces and gummy, it is called clay.
What are the 3 consistences? Loose, breaks apart easily. Friable breaks apart with one finger. Firm breaks apart when pressed hard with two fingers.
What are the 4 colors of soil? Chocolate brown, yellowish brown, grayish brown, reddish brown
Sand, silt, and clay are what ? weathered rocks
Plants need what ? Soil, Sunlight, water, and air
The specific ingredients in a soil are referred to it is what ? composition
dead decaying stuff is what ? Organic matter
Created by: CaitlynLee7
 

 



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