Chapter 13 soil terms

Question 1

humus

Answer 1

top layer of soil made of decaying remains, organic compound

Question 2

organic material

Answer 2

carbon-based material derived from living things

Question 3

sand

Answer 3

particle of soil used to determine texture of soil, granules of fine rock particles

Question 4

geology

Answer 4

study of soil and rocks

Question 5

mineral

Answer 5

naturally occurring crystalline solid formed over time

Question 6

silt

Answer 6

soil particles that has particles that are coarser in texture than clay but finer

Question 7

soil

Answer 7

mixture of minerals, water, gases, and organic material

Question 8

weathering

Answer 8

formation of soil through the actions of wind and water on rock

Question 9

soil profile

Answer 9

cross section of horizontal layers or horizons, in the soil that has distinct compositions and properties

Question 10

sediment

Answer 10

soil that has settled after having been transported to a new location by water, wind, or glaciers

Question 11

fragment

Answer 11

grain of sand composed of two or more minerals

Question 12

clay

Answer 12

finest soil particle, absorbs and holds water, has a slightly negative charge