Show:
Rock
Grand Canyon
Earth
Interesting Facts
Fossils
100
Many of a rock's features depend on....
What is How and where they form?
100
Rock layers found in the the Grand Canyon provide evidence that.....
What is the area was once covered by an ocean that gradually grew deeper and then receded?
100
This layer of Earth has the most extreme heat and pressure?
What is the inner core?
100
Solid particles of calcium carbonate form when organisms exhale dioxide into water that contains...?
What is Calcium?
100
.....are the remains or traces of organisms that lived for a short time in many places around the world.
What is the definiton of index fossils?
200
Most rocks are made of.....?
What is Minerals?
200
Earth Formed.
What is 4.5 billion years ago?
200
When water or wind slows down and bits of rocks settle.
What is Deposition?
200
...are useful because they can be used to compare the ages of rock layers at different locations.
What are index fossils useful for?
300
If an igneous rock has large crystals.
What is Magma trapped deep beneath earth's surface?
300
Years to form
What is 3-6 million years to form?
300
How many years ago different events happend.
What is Numeric time scale?
300
They help in dating other fossils found in the same..... What rock layer?
What is sedimentary rock layer?
400
..... is composed mostly of calcium carbonate, which is white.
Why is Limestone often white?
400
How different parts of Earth's history compare to the whole.
What is proportional time scale?
500
Marble forms when limestone is exposed to heat and pressure. What rock is marble?
What is Metamorphic?
500
Process of finding relationships between rock layers from different layers.
What is correlation?