What is a Landslide?
When weathered materials rapidly roll down a hillside in a broken mass
What does Cenozoic mean?
New/recent life
What is a Mudslide?
When water soaked weathered materials roll down a hillside in a broken mass
What is Till?
All earth materials picked up and moved by a glacier
What is a fossil?
What are these?
Kettle lakes
What is the longest time period in Earth's History?
Precambrian
What is Deposition?
The placing of Earth materials in a new location
What is Erosion?
What is a trace fossil?
Any preserved record of a once living thing's activities
What are these?
Finger lakes
What does Mesozoic mean?
Middle life
What is Weathering?
Breaking down of rock material through physical or chemical means
What is chemical weathering?
Occurs when the rocks are chemically broken down
What is the Load?
Amount of materials carried by water
What occurred here?
Hydrolysis
What does Paleozoic mean?
Old life
What is physical/mechanical weathering?
Breaking up rock materials without altering the chemical makeup of the rock
What are kettle lakes?
Lakes formed from when a continental glacier breaks off a small piece of its edge; that edge becomes surrounded by till and buried and eventually that piece melts and forms a depression in the ground.
What is a Finger Lake?
Lakes formed from when a continental glacier rides over some softer land and it gauges out a long deep depression
What occured here?
Acid erosion of rocks
What is Abrasion?
When rocks or sand moved by water or wind hit rock and break or chip off parts of other rocks
What is Hydrolysis?
When rock materials are chemically altered by chemical reactions with water
What is Mass Wasting?
The movement of rock and soil down slope under the influence of gravity
What is a Half Life?
The time it takes for half of the radioactive element to change into a new element.