Weathering & Erosion I
Rocks breaking apart
Weathering
All the living and nonliving things in a place
Environment
Melting and cooling forms this type of rock
Igneous
The remains of a plant or animal that lived a long time ago
Fossil
When water freezes, expands, and breaks apart a rock
Ice Wedging
Rocks moving from one place to another
Erosion
Underwater environment
Aquatic
Breakdown and cementation causes this type of rock
Sedimentary
Fossils are usually found in this type of rock
Sedimentary
Tree roots breaking rocks apart
Root Wedging
When rocks move and land in a new place to settle there
Deposition
Very small pieces of rock
Sediment
Heat and pressure forms this type of rock
Metamorphic
A type of sedimentary rock made of fossil plants that can be burned and used for fuel
Coal
The type of weathering that occurs when plant roots break rocks apart
Biological
How are weathering and erosion different?
Weathering breaks rock, erosion moves rock
Layers of rock pressed together over millions of years
Sedimentary Rock
Rock formed when lava cools, dark color
Basalt
A footprint is what type of fossil?
Trace fossil
When a landslide occurs, what is the erosion agent?
Gravity
3 main types of weathering
Mechanical, chemical, & biological
The three main types of rocks
Igneous, Sedimentary, Metamorphic
Which layer would the oldest rock be found in?
Bottom
A person who studies fossils
Paleontologist
Erosion is caused by these 4 things
Water, wind, ice, gravity