Vocab
What is debris?
Little pieces of rock and dirt.
What river eroded the Grand Canyon?
Colorado river!
What is one of the types of rock that can be found on the higher layers? (Hint- it starts with an L!)
Limestone!
Finish the sentence.. The continuous eroding rock from the...
Colorado plateau.
True or false- The Grand Canyon makes its own weather?
True!
What is a plateau
High rocks with a flat top!
How did Erosion start?
From the Colorado river carving it little by little making it into a giant canyon.
What is another kind of rock on the top layers?
(hint- it starts with an S!)
Sandstone!
True or false is the grand canyon still forming to this day?
True!!
How many years old is the oldest rock layer?
1.5 billion years!
What is sedimentary rock?
It is tiny pieces of rock that build up over time to form!
What helps erosion the most?
Water
What do some people find at the very bottom of the canyon?
Artifacts!
How many years did the Colorado plateau take to form the grand canyon?
5-6 million years!
How many layers of rock are in the grand canyon?
More than 20!
What does it mean when something gets eroded?
It gets carved out by a river or other bodies of water!
How did the Colorado river start forming?
From the uplift of the Plateau
A lot deeper in the canyon you will see.. hint starts with M
Metamorphic Rocks.
What does the Colorado river carry?
Sediment rock and debris!!
Who named the grand canyon?
Major John Wesley Powell!
What does uplift mean? (in rock terms)
Rock that was once underground brought back up.
What is the main reason on why the canyon has slowed down Erosion?
The dams in the Colorado river.
If you go all the way down you will find... hint starts with I
Igneous rocks!
What is it called when the river carries sediment rock and debris?
Incision Erosion
When was the grand canyon named?
1871