The outer surface of Earth is a layer of rock called the
crust
100
Water, ice, gravity, and wind can work together to move
weathered pieces of rock. This process is called
erosion
100
Name 2 events that cause a rapid changes in the surface of the Eath
earthquake, volcano
100
Earth’s outer layer, or crust, rests on top of another layer called the upper mantle. These two
layers, together, are divided into very large pieces called
plates
200
Name two different landforms
plains, plateaus, pennisulas, canyons, valleys, etc.
200
A fast-moving stream may carry eroded material a long
way. After many years, the grooves that running water
carves in the land become
valleys and canyons
200
An ______ volcano has frequent eruptions or shows
signs of future eruptions
active
200
A ______ is a break or crack in rocks where Earth’s crust can move
fault
300
Rocks in Earth's crust are slowly being broken into smaller pieces in a process called
weathering
300
________ is the laying down of pieces of rock._
deposition
300
A volcano that has not erupted for a long time is
dormant
300
The sudden movement that causes Earth’s crust to shake is an
earthquake
400
Name the two differnet types of weathering
physical and chemical
400
As moving water slows, the _______
pebbles settle to the bottom first.
Then ______ sand-sized particles
sink. Finally, the smallest bits, called
silt and clay, sink too.
larger, smaller
400
A volcano is classified as ______ if scientists do not
think it will erupt again.
extinct
400
The focus is the place underground where the plates start to move and the earthquake begins.
The point on Earth's surface that is directly above the focus is the
epicenter
500
Give an example of physical and chemical weathering
physical - water, ice, temperature changes, living things
chemical - Animals and plants give off chemicals
that can cause weathering.
500
How are avalanches and landslides similar? How are they different?
They both cause a great deal of damage, loose snow packs cause avalanches while loose weathered material causes landslides
500
What can be a result of massive amount of ash thrust into the air from volcanic eruptions?
trees and wildlife killed, temperature dropping
500
the damage an earthquake causes is usually greatest near the