Show:
Earth
Fossils and Index Fossils
Rocks
Grand Canyon
Vocabulary
100
The age of the Earth.
What is 4.5 Billion years old?
100
Fossils of organisms that lived for a short time, but many places around the world.
What are index fossils?
100
There are 3, Igneous, Metamorphic, and Sedimentary.
What are the different rock types, and how many are there?
100
The Grand Canyon formed.
What is about 10 billion years ago?
100
-Forms in nature. -Is a crystal. -Is a solid. -Has a definite chemical makeup.
What is the characteristics of a mineral?
200
The time earth was full of swamps.
What is about 300 billion years ago?
200
They provide geologist with important prehistoric environments.
How do fossils help geologist?
200
Molten cooled and hardened.
What is the way igneous if formed?
200
The land that gets covered by water from a stream or river during a flood.
What is a floodplain?
200
A mound, hill, or ridge of windblown sand.
What is dune?
300
There are ____ numbers of landforms.
What is 10 landforms?
300
The most common fossil found by geologist.
What are trilobites.
300
The most common rock to contain fossils.
What is sedimentary?
300
Starting point for White Water River Rafting.
What is Lee's Fairy?
300
They are particles that settle when whatever is carrying them slows down.
What are sediments?
400
The oldest rock that has formed.
What is granite?
400
A fossil not of an organism, but instead a fossil of an organism activity.
What is a trace fossil?
400
When Granite first appeared.
What is about 3 billion years ago?
400
The river in the Grand Canyon.
What is the Colorado River?
400
Porportional time is a equal amount of time.
What is proportional time?
500
The Reptile age.
What is 245 million years ago?
500
There are 25 index fossils.
How many index fossils are there?
500
Limestone contains a lot of sand or mud particles that would make it tan not white.
Why isn't all limestone white?
500
The length of the Grand Canyon.
What is 277 miles long?
500
Numerical time is a unequal amount of time.
What is numerical time?