Show:
Rocks
Ancient Environments
Earth History
Vocabulary
Essay
100
The three major rock types...
What are metamorphic, igneous, sedimentary?
100
The environment during the Age of the Dinosaurs.
What is swampy?
100
Earth is this old...
What is 4.5 bya?
100
This process is when soft, weak rocks erode faster than hard, strong rocks.
What is differential erosion?
100
The limewater in the limewater expirement represents...
What is ancient sea water?
200
The three major rock types are the same by...
How were they formed?
200
The environment during the Ice Age.
What is icy and barren?
200
Lee's Ferry's mile.
What is mile 0?
200
This means to find a relation between rock layers at two or more locations.
What is correlation?
200
This ancient specimen helps geologists compare ages at different places...
What are index fossils?
300
Metamorphic rocks are formed by...
What is heat and pressure?
300
The environment while the Earth was forming.
What is burning hot?
300
Name three of the Grand Canyon layers.
What are Coconino Sandstone, Hermit Shale, Kaibab Limestone. (Others may be added.)
300
Volcanic lava, erosion, weahering, and transport.
What are destrutive processes?
300
This process occurs when there are soft rocks and hard rocks eroding...
What is differential erosion?
400
This rock(s) is not good for finding fossils...
What are igneous and metamorphic rocks?
400
Pangea.
What is the super continent?
400
This scratches a diamond.
What is a diamond?
400
Deposition, transport, and mountain building.
What are constructive processes?
400
When geologists need help with ancient rocks, they go here.
What is the Grand Canyon?
500
Limestone is...
What is a sedimentary rock?
500
What was the environment during the time of the first recorded history?
What is it like now?
500
What is Earh's ACTUAL AGE. ( Hint: not a decimal...)
What is 4,500,000,000 billion years old?
500
"The present is the key to the past."
What is uniformitarinism?
500
Geologic timelines say we've lived for --- years.
What is 200,000 years?