Chapter 7 Section 2 Notes Fact Finders Use your textbook pages 188 194 to fill in the blanks is a mixture of weathered rock decayed organic matter mineral fragments water amp air ID: 587615
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Slide1
The Nature of Soil
Chapter 7
Section 2 NotesSlide2
Fact Finders
Use your textbook, pages 188 - 194, to fill in the blanks.
_______ is a mixture of weathered rock, decayed organic matter, mineral fragments, water & air.
Soil formation is influenced by ___________, ___________, types of ________, types of __________ & length of ______ that rock has been weathering.
Clay, silt & sand are small particles of _________.
Decaying, dark-colored plant & animal material is called ________.
Small spaces between soil particles may be filled with _______ or _______.Slide3
Answers_Soil_ is a mixture of weathered rock, decayed organic matter, mineral fragments, water & air.
Soil formation is influenced by _climate_, _slope of land_, types of _rock_, types of _vegetation_ & length of _time_ that rock has been weathering.
Clay, silt & sand are small particles of _sediments_.
Decaying, dark-colored plant & animal material is called _humus_.
Small spaces between soil particles may be filled with _air_ or _water_.Slide4
6. Different layers of the soil are called _h____________.
7. The top layer is called Horizon ___ and may be covered with organic ________ that may turn into humus.
8. Horizon A is a fertile layer of soil with more _______ and less ________ and mineral particles than other soil horizons.
9. Horizon B, or the 2
nd
layer of soil, contains less ______ & is lighter in color than the A horizon.
10. Minerals travel from A horizon to B horizon in a process called __________.Slide5
Answers6
.
Different layers of the soil are called _horizons_.
7. The top layer is called Horizon
A
and may be covered with organic
matter
that may turn into humus.
8. Horizon A is a fertile layer of soil with more _humus_ and less _rock_ and mineral particles than other soil horizons.
9. Horizon B, or the 2
nd
layer of soil, contains less
organic matter
& is lighter in color than the A horizon.
10. Minerals travel from A horizon to B horizon in a process called _leaching_.Slide6
11. Horizon C is the _______ layer of soil. It has very little ________ matter and is not strongly affected by leaching.12. The C Horizon contains rock, the _______ material of the soil.
13. Glaciers can deposit soil that did not form from the ________ beneath it.
14. Different regions have different __________ that affect soil development.Slide7
Answers11. Horizon C is the
third
layer of soil. It has very little
organic
matter and is not strongly affected by leaching.
12. The C Horizon contains rock, the
parent
material of the soil.
13. Glaciers can deposit soil that did not form from the
ground/rock
beneath it.
14. Different regions have different
climates
that affect soil development.Slide8
15. ______ rock affects soil formation & type of ______ that grows in a region.16. _________ affects soil development because the longer the weathering has occurred, the less the soil resembles the parent rock.
17. Soil on steep ______ develops poorly.Slide9
Answers15. Parent rock affects soil formation & type of vegetation
that grows in a region.
16.
Time
affects soil development because the longer the weathering has occurred, the less the soil resembles the parent rock.
17. Soil on steep _
slopes
_ develops poorly.