They have fossils that lived in many places around the world for a short perioid of time.
What is index fossils?
100
They holds together sediments and particles to form sedimentary rocks.
What is a cementing agent?
100
The Grand Canyon was formed this many years ago.
What is 10,000,000
100
They are the two types of weathering.
What are physical and chemical weathering
100
It is the Rock Cycle.
What is the way rocks are formed and how they transform into other rocks?
200
they are the only rocks that contain fossils.
What are sedimentary rocks
200
Its main ingrediant is calcium carbonate or calcite
What is Limestone?
200
this large canyon is located on the colorado plateau.
What is the Grand Canyon
200
It is mass movement.
What is huge movement of rocks caused by gravity, water, and/or wind down a slope.
200
They can change due extreme heat to form molten rock.
What are Igneous, Metamorphic, and Sedimentary rocks?
300
These type of index fossils lived under water.
What are brachiopods?
300
Fish exhale Carbon dioxide which mix with this in the water.
What is Calcium?
300
This process is how most of the rocks in the colorado plateau are formed
What is sedimentation?
300
It is the moist frequent cause of rocks breaking apart.
What is water?
300
Igneous, sedimentary, and metamorphic rocks are subjected to two destructive processes to form these.
What is sediments.
400
It is used to explain what fossils are and how they form.
What is uniformitarianism?
400
This makes limestone react with hydrocloric acid.
What is Calcite or calcium carbonate?
400
It shows the history of rocks in the 1.7 billion years it formed.
What is the Grand Canyon
400
It is the rock that is the most easily broken down by carbonic acid.
What is Limestone?
400
It is what people call the original rock that exists before being changed by heat and pressure.
What is a source rock?
500
He collected fossils and noticed that each kind of limestone contains its own set of unique fossils. He also opbserved that some fossils were found in several layers while some were only found in one.
Who is William Smith?
500
It is what sedimentary means.
What is settled?
500
This is a sequence of layers.
What is a Rock column?
500
They are chemicals that attach and feed on rocks, releasing acid that wears down rocks.