The Grand Canyon
The oldest rocks in the Grand Canyon were formed in the?
Pre- Cambrian
What are the tapeates sandstones?
The oldest rock layer in the Grand Canyon
The Cenozoic era is also known as the age of the
Mammals
What part of the human body serves the purpose of maintaining balance?
Ears
What are metamorphic rocks?
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form
What is the Great Unconformity in the Grand Canyon?
A missing layer of rocks for an unknown reason
What Eon do you live in now?
Phanerozoic
The Carboniferous period is a period of time where lots of... was formed
Coal
How many bones are in the human body?
206
What are igneous rocks?
Igneous rocks are formed through the cooling and solidification of magma or lava.
Dinosaur
What is a stratigraphic column?
An image that shows the layering and unconformity of rocks
During what era were index fossils found?
The Mesozoic
What is the only rock that floats?
Pumice
What is the hardest natural substance on Earth?
a Diomond
The Colorado River cut the Grand Canyon in the
Cenozoic era
The K-Pg or K-T boundary are known for?
A layer of iridium in the rocks around the planet?
A T-Rex was living during which Eon?
Phanerozoic
What is chalk made of?
It comes from limestone, which formed from the shells of tiny marine animals.
Do diamonds last forever?
No, they break down over millions of years.
Approximately how many years ago was the Coconino Sandstone deposited as sediments
275 Mya
Stromatolites are a type of
Cyanobacteria, are responsible for adding O2 to the atmosphere.
What are the eras from oldest to youngest
Paleozoic, Mesozoic, and Cenozoic
What is Mrs. Gonzales daughters name?
Ezra
What are the laws of sedimentary rocks?
horizontal lines, if lines are not horizontal they are deformed, oldest and the bottom youngest at the top