Shared Flashcard Set

Details

Chapter 9
Vocabulary
23
Science
4th Grade
05/06/2011

Additional Science Flashcards

 


 

Cards

Term
Crust
Definition
The outermost layer of the earth
Term
Mantle
Definition
The plastic-like layer found just below the earth's crust
Term
Lithosphere
Definition
The rocky layer that contains the crust and upper mantle
Term
Outer Core
Definition
The dense liquid part of the core
Term
Inner Core
Definition
The very dense solid center of the earth
Term
Convection current
Definition
The circular movement of heated materials to a cooler area
Term
Plate tectonics
Definition
The study of how the lithospheric plates interact
Term
Fault
Definition
A crack in the earth's plates along which movement occurs
Term
Convergent boundary
Definition
Plates that push together
Term
Divergent boundary
Definition
Plates that pull apart in opposite directions
Term
Transform boundary
Definition
Plates that slide past each other in opposite directions
Term
Weathering
Definition
The process by which rocks are gradually broken down
Term
Physical Weathering
Definition
The breakdown of large pieces of rocks into smaller ones, mainly by temperature and pressure changes
Term
Chemical Weathering
Definition
The breakdown of rocks as a result of chemical reactions, causing new substances to be formed
Term
Oxidation
Definition
A chemical change in which oxygen combines with another substance
Term
Carbonation
Definition
The process by which carbon dioxide dissolves in water
Term
Organic
Definition
Consisting of compounds that contain carbon
Term
Inorganic
Definition
Consisting of compounds that do not contain carbon
Term
Strata
Definition
The horizontal layers of material
Term
Topsoil
Definition
The upper layer of soil
Term
Subsoil
Definition
The layer of soil beneath the topsoil
Term
Bedrock
Definition
The solid rock layer beneath the subsoil
Term
Equilibrium
Definition
A state of rest or balance resulting from the equal action of opposing forces
Supporting users have an ad free experience!