minerals
sedimentary, metamorphic, and igneous rocks
Index fossils and fossils
Earth time line
Grand Canyon and rivers
100
When a mineral has a clean cut.
What is cleavage?
100
when sedimentary rocks change to extreme heat.
How is igneous form?
100
A fossil that has been in many places for a short period of time.
What is a index fossil?
100
The longest era.
What is the paleozoic era?
100
The mile mark is between Nankoweap and North Canyon.
What is the mile 36 mark?
200
Something that can not be scratched.
What is hardness?
200
sediments get compacted and cemented together.
How is sedimentary rock formed?
200
Something that has been preserved in a rock.
What is a fossil?
200
The era in which earth formed.
What is the Precambrian era?
200
It has an elevation of 2,925 feet.
What Norths Canyons elevation?
300
Rocks get broken up into many not perfect shapes.
What is a fracture?
300
molten rock cools and hardens.
What is an igneous rock?
300
Formed in the middle and or early Cambrain time.
What time did the trilobite form?
300
The Era in which dino's appeared, flowering plants came, and rocky mountains started to form .
What is the Mesozoic Era?
400
a rock rubbed against something to leave a mark.
What is streak?
400
A type of rock that is formed at or near earths surface.
What is igneous and sedimentary rocks?
400
When rocks and fossils get lined up.
What is correlation?
400
The Era people started the come.
What is the Cenozoic Era?
500
the rock that has a hardness of 10.
What is a diamond?
500
Igneous rock changes due to extreme heat and pressure.
What is a metamorphic rock?
500
They can be used to compare the ages of rock layers at different locations.
Why are index fossils important to geologists?
500
In 245 MYA - 208 MYA these lizard like animals first appeared.
What is the time dino's appeared?
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