Show:
Fossils
Grand Canyon
Rock Cycle
Earth History
Miscellaneous
100
The remains or traces of prehistoric organisms preserved in a rock.
What is a fossil?
100
The water source that created the Grand Canyon.
What is the Colorado River?
100
This is the process in which rocks form.
What is the rock cycle?
100
The generally excepted age of the Earth.
What is 4.5 billion years?
100
This is a timeline that uses numbers to represent time.
What is a numeric timeline?
200
Fossils of organisms that lived for a short period of time and in many locations.
What are Index Fossils?
200
The Grand Canyon at its deepest point.
What is 6,000 feet or about 1 mile?
200
Rocks formed from molten rock.
What are Igneous rocks?
200
This is the most recently formed supercontinent.
What is Pangea?
200
This is a timeline that uses proportions to represent time.
What is a proportional timeline
300
A rock that will be best for finding fossils.
What is a sedimentary rock?
300
The Grand Canyon at its widest point.
What is 18 miles?
300
Rocks formed by heat and/or pressure.
What are Metamorphic rocks?
300
This is the time that water started to form on Earth.
What is 4.4 billion years ago?
300
This is the very center of the Earth.
What is Inner Core?
400
This is what is usually found in fossils.
What are ancient organisms?
400
The amount of exposed layers in the Grand Canyon.
What are 12 layers?
400
Rocks created by sediments piling up, layer by layer.
What are Sedimentary rocks.
400
This is when the first continents began to form.
What is 3.5 billion years ago?
400
The breaking down or movement of small particles of bigger rocks.
What is erosion?
500
This is one type of Trilobite.
What are Albertella, Glossopleura, or Olenellus.
500
The age of the Grand Canyon.
What is 6 to 70 million years old?
500
Heat & Pressure, Breaking Down, Melting, Compacting, Watering, and Cooling.
What are the processes that are in the rock cycle?
500
This is the state that the Earth began in.
What is molten?
500
DAILY DOUBLE! The period of time caused by Rodinia where the whole Earth was put in to a frozen state.
What is snowball Earth?