Geological Time Scale
Giant reptiles that ruled the earth, until a meteor crashed.
What are dinosaurs?
These are the names of 2 different categories of weathering.
What is mechanical and chemical weathering?
This scientist became the father of geology.
Who was James Hutton?
This type of erosion chips sediments off of the steam bed and steam bank.
What is river erosion?
A scientist who studies earth
What is a geologist?
The earth was created this many years ago.
What was 4.5 billion years ago?
This weathering is common in desert climates.
What is heat expansion?
This scientist discovered that the earth was slowly cooling.
Who was Lord Kelvin?
The meandering river carries these sediments.
What is silt and clay?
Mountains and other surface features of the land.
What are landforms?
The current era.
What is Cenozoic?
This type of weathering caused by the growth of trees.
What is root weathering?
This weather scientist proposed the theory that the continents were once one.
Who was Alfred Wegener?
The mountain stream transports these sediments.
What is sand, silt, and clay?
The breaking down of rock on Earth's surface into smaller pieces.
What is weathering?
The two super continents from many years ago were made up of all 7 continents.
What is Pangea and Rodinia?
This weathering that occurs when crystals grow.
What is salt weathering?
This scientist contributed to Wegener's theory on continental drift.
Who was Arthur Holmes?
The process by which weathered rock is picked up and moved to a new place.
What is erosion?
An opening in the earth's crust where lava, cinders, ash, and gases comes to the surface.
What is a/are volcano(es)?
This species of rock and bacteria gave earth it's first oxygen.
What are stromatolites?
This weathering occurs from chemicals produced by colonies of algae and fungi.
What is lichen growth?
These scientist's discovered the theory on a meteor making the dinosaurs go extinct.
Who were Luis and Walter Alvarez?
One decomposition breaks down or dissolves rock while not involving movement, however another type of decomposition breaks down or dissolves while moving.
What is the difference between weathering and erosion?
The study of fossils
What is paleontology?