Inside the earth 

Understanding geologic time

Rock cycle quizlet

Rock on

Weathering interactive video

Rock cycle toon

Interactive rock cycle

Rock cycle stuff

Bite size - rocks and weathering

weathering and erosion quizlet

Weathering simulation

Plate techtonics

Weathering and climate

The Powell Expedition

Rivers and coasts

Rock cycle and types

Law of superposition

Volcano Web Links 

Cascade range volcanoes

National Geographic Volcanoes

Volcano Explorer

Mt. St Helen's

Big volcano site

Weather wiz kids Volcanoes

Earthquake Web links 

Savage Earth - Pbs

National Geographic Earthquakes

Weather wiz kids Earthquakes

California Earthquakes

United States Geology Survey Earthquakes and such

Earth disaster animations