1
The mostly solid, rocky part of the Earth; extends from the center of the core to the surface of the crust
2
The movement of phosphorous through each of the Earth cycles EXCEPT the atmosphere
3
The solid, outer layer of Earth that consists of the crust and the rigid upper part of the mantle
5
A system in which both energy and matter are exchanged with the surroundings
6
The part of Earth where life exists; includes all of the living organisms on Earth
8
A set of particles or interacting components considered to be a distinct physical entity for the purpose of study
10
The sequence in which organisms consume other organisms
12
Literally, the "middle sphere"; the strong, lower part of the mantle between the asthenosphere and the outer core
14
The solid, plastic layer of the mantle beneath the lithosphere; made of mantle rock that flows very slowly, which allows tectonic plates to move on top of it
15
The area around the outside of Earth where Earth's magnetic field extends
16
A mixture of gases that surrounds a planet, moon, or other celestial body
17
The movement of nitrogen through the environment
19
Nonliving parts of the environment
20
Consumers who get their energy by breaking down dead organisms
24
Anything that has mass and takes up space
25
A group of processes in which matter repeatedly moves through a series of reservoirs
26
The study of complex relationships between living things and their nonliving environment
29
The central part of the Earth below the mantle