The remains or traces of a plant or animal within a rock.
What is a fossil?
100
This has existed for 10,000 years.
What is The Grand Canyon?
100
An example of a soft rock that erodes away quickly.
What is shale?
100
The age of earth's existance.
What is 4.5 billion years old?
200
The main difference between the three rock types
What is how the rocks are formed?
200
Most likely to contain fossils.
What is sedimentary?
200
The Grand Canyon was once an ancient _____.
What is sea?
200
Two hard rocks that erode away slowly.
What is sandstone and limestone?
200
The longest era in Earth's current history.
What is Precambrian era?
300
When a rock is changed by extreme heat and/or pressure.
What is the way Metamorphic rocks are formed?
300
A fossil of an organsim that lived all around the world for a short period of time.
What is an Index Fossil?
300
The states the Colorado River flows through.
What is Utah, Colorado, Arizona?
300
Rock formations affected by differental erosion will look like____?
What is like steps or staircases?
300
This sedimentary rock forms in swamps over a long period of time.
What is coal?
400
An example of each rock type
What is
Igneous-Pumice,Granite, Bassalt;
Sedimentary-Limestone, Sandstone, Coal;
Metamorphic-Marble, Slate
(Answers will vary)?
400
The difference between an index fossil and regular fossil.
What is an index fossil is a fossil of and organism that lived for a short time in many places arround the world, whereas a regular fossil is the remains or traces of a plant and/or animal?
400
The distance between Nankoweap and North Canyon.
What is 32 miles away from eachother?
(North canyon= Mi. 20, Nankoweap= Mi. 52)
400
When hard and soft rocks are found in a rock layer, and the soft rock erodes away faster than the hard rocks.
What is differential erosion?
400
The correct order these organisms arrived on Earth, the first one being the oldest, and the last one being the newest:
First insects,
First mammals, and
Trilobites.
What is Trilobites, First insects, and First mammals?
500
The formation of Sedimentary rocks.
What is when sediments fall togther in layers and become compacted and cemented together?
500
Two examples of index fossils.
What are Brachiopods, Corals, Cephalopods, Trilobites, Gastropods?
500
The second rock layer in the Grand Canyon and Coloroda Plateau.
What is Tapeats Sandstone?
500
Type of erosion Balanced Rock, and Mexican hat are ____?
What are examples of differential erosion?
500
The amount of years it has been since the dinosaurs died.