Weathering
These are the 2 types of weathering
What are Chemical and Physical (Mechanical) Weathering
Small, solid pieces of material from rocks or organisms
What is Sediment
This is a good description of the word Deposition
What is: answers may vary but should include the dropping off of sediment
What are the 3 types of rock
What are Sedimentary, Igneous and Metamorphic
when _________ cools very quickly, either small or no crystals form and the rock looks shiny and glasslike
What is lava
The process in which rock is physically broken down into smaller pieces
What is Mechanical (Physical) Weathering
1 process that causes erosion through the air
What is wind
Great rivers such as the Mississippi River, ________
the sediment they carry where they enter the ocean, forming a Delta.
What is Deposit
This type of rock is formed under the surface of the earth from the change that occurs due to intense heat and pressure
What is Metamorphic
The only type of rock that contains fossils
What is Sedimentary
This occurs when plant roots grow larger and larger in the cracks of rocks and eventually break rocks apart.
What is Root Wedging
Sheets of year round ice called this ________ slowly move over land, they can move boulders the size of houses as well as smaller sediments.
What are Glaciers
Another way to remember Deposition is the _________ off of sediments
What is Dropping
This type of rock is formed when magma cools and hardens
What is Igneous
Rocks that result from this process often have ribbon like layers and may have shiny crystals, formed by minerals growing slowly over time
What is Metamorphic
This occurs when water seeps into the rocks, freezes, and expands to break rocks apart
What is Frost Wedging
________ erosion is greatest in dry areas, such as deserts, where there is little water to hold soil particles together or trees to block its path.
What is Wind
A landform of sediment deposited where a river flows into an ocean
What is a Delta
This type of rock is formed from particles of sand, shells, pebbles, and other fragments
What is Sedimentary
Basalt and Obsidian are types of this rock
What is Igneous
This occurs when oxygen dissolves in water and combines with minerals in rocks, sometimes causing rust
What is oxidation
Rainwater running off land carries away sediment, leaving behind an eroded path called this
What is a Gully
Sediment is deposited by these 3 things
What is Wind, Water & Ice
The differences among the types of rock have to do with how they are ________
What is formed
This is the process by which sediment accumulates in layers and over a long period of time hardens into a rock
What is Lithification