Vocabulary 1
the process of moving sediment from place to place
What is erosion?
the center layer of the Earth that is very hot
What is the Earth's core?
physical features such as beaches, mountains, and valleys
What are landforms?
great pressure at the center of the Earth
What keeps the inner core solid?
a layer of rock beneath Earth's crust that is very hot
What is the Earth's mantle?
remains or traces of past life
What are fossils?
a slow moving sheet of ice that pushes rock and soil in front of it
What is a glacier?
rigid blocks of crust and upper mantle rock
What are plates?
the best explanation for a process based on evidence
What is a theory?
the process of sediment dropped or deposited in a new location
What is deposition?
the process of rocks breaking into sand or clay
What is weathering?
water, wind, and ice
What can change landforms?
Earth's plates that scrape and slide past each other
What causes earthquakes?
rock and soil moving downward because of gravity
What is mass movement?
tiny pieces of rock broken into sand or clay
What is sediment?
a type of mass movement where soil moves very slowly downhill
What is creep?
Earth's plates colliding
What causes volcanoes and mountains to form?
the Colorado River continues to erode its layers of rock
What continues to erode the rock of the Grand Canyon
a theory of how Earth's continents move over its surface
What is continental drift?
a type of mass movement in which soil moves downhill very quickly
What is a landslide?
the Himalayas
What is the highest mountain range on Earth?
the oldest rock layers are at the bottom
Where are the oldest rock layers in a canyon?