Soil Formation
The name for layers in the soil
Horizons
Rocks and minerals break down into smaller pieces
Mechanical/ Physical Weathering
The first step in forming a sedimentary rock is
Weathering
Dinosaurs were abundant during this time period
Jurassic
City development and population increase
Urbanization
Which soil texture has the smallest particles
Clay
Rocks and minerals change composition as a result of chemical reactions
Chemical
What 2 processes can turn sedimentary rock into igneous rock?
Melting and cooling
We live in this era
Cenozoic
Cultivation of land to grow food or livestock
AGRICULTURE
Which soil texture has the biggest particles
Sand
Name one factor that affects weathering rate
Climate, Rock type, topography
How do sedimentary rocks become metamorphic rocks? (2 factors)
Intense heat and pressure
The era was first (oldest)
Precambrian
Harvesting minerals from within the earth
Mining
Which Soil texture is very fertile and can hold lots of water?
Silt
This chemical reaction forms rust
Oxidation
What step of forming a sedimentary rock can be broken down into Compaction and Cementation
Lithification
This era's life was mostly fishes
Paleozoic
The process for extracting fossil fuels from the earth
Drilling
Which horizon in soil is represent by the layer R?
Bed rock
This example of weathering happens when carbon and water in the atmosphere combine to make carbonic acid
Acid Rain
What types of rocks can become sedimentary rocks?
(Must have all correct answers to get points)
Sedimentary, metamorphic, igneous
This era was home to dinosaurs, birds, and some early mammals. It was also the shortest.
Mesozoic
Mass removal of trees
Deforestation