group of parts that work together as a whole
system
ability to do work
energy
thin layer of gases that make up Earth's outermost layer
atmosphere
densest part of Earth that includes the crust, mantle, and the cores
geosphere
portion of Earth that consists of water in lakes, oceans, rivers, etc.
hydrosphere
part of earth that contains all living things
biosphere
forces that bulid up Earth's surface
constructive forces
forces that tear down Earth's surface
destructive forces
vibrations that travel through Earth
seismic waves
force pushing on a surface
pressure
layer of rock that forms Earth's outer skin
crust
dark, fine-grained rock
basalt
usually light colored rock with coarse grains
granite