ch. 8 (weathering and soil formation)- science final vocab
About this set
Created by:
ilovelucy9 on May 30, 2009
Subjects:
Description:
chapter 8 (weathering and soil formation)- science final vocab
Classes:
Moravian NA Group, Moravian Academy Middle School Help, MA (moravian) 7th grade science final
Log in to favorite or report as inappropriate.
Order by
15 terms
Terms | Definitions |
|---|---|
 weathering | the process that breaks down rock and other substances at Earth's surface |
| erosion | the removal of rock partixles by wind, water, ice, or gravity |
| mechanical weathering | the type of weathering in which rock is physically broken into smaller pieces |
| abrasion | the term referring to the grinding away of rock by rock particles carried by water, ice wind, or gravity |
| ice wedging | when wedges of ice in rocks wden and deepen cracks |
| chemical weathering | the process that breaks down rock through chemical changes |
| oxidation | the process that iron combines with oxygen in the presence of water |
| permeable | when a material is full of tiny, connected air spaces that allow water to seep through it |
| soil | the loose, weathered material on Earth's surface in which plants can grow |
| bedrock | the solid layer of rock beneath the soil |
| humus | a dark-colored substance that forms as plant and animal remains decay |
| fertility | a measure of how well the soil supports plant growth |
| loam | soil that is made up of about equal parts of clay, sand, and silt |
| litter | the loose layer formed from shedded plant leaves |
| decomposer | organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.