Earth
Lighter elements
What is the name of the soil horizon that is also commonly known as the subsoil?
The B Horizon
Where are fossil records commonly found?
In sedimentary rocks.
What are the two types of chemical weather?
Physical and chemical.
What is Subduction?
The processes of one crustal plate passing under another.
Which elements sank to the core?
Heavier elements.
How does soil form?
Soil forms through the chemical and physical weathering of rocks.
What happens when a certain rock changes in pressure or heat?
It causes one type of rock to form into a different rock.
What is at least one example of chemical weathering?
Hydrolysis, Hydration, Dehydration, Oxidation and Carbonation.
Which tectonic plates mover away from each other? {< >}
Divergent plates.
What layer of the earth do we live on?
What could loose soil around streams lead to?
Flooding.
How are sedimentary rocks formed?
Sedimentary rocks are formed from fragments of material.
What does the chemical weathering of rock alter?
The rocks chemical composition.
Which plates move towards each other and colide?
Convergent plates.
What is the correct vertical zonation of the Earth above the core.
Mantle - Asthenosphere - lithosphere - soil.
What is topsoil also known as?
A horizon.
How is a sedimentary rock formed?
A sedimentary rock is formed when magma cools and hardens.
What does the physical weathering of a rock do?
It breaks down the rocks physical structure.
What occurs when tectonic plates move past each other?
Earthquakes.
How does the presence of organic matter benefit soil?
It allows nutrients to flow out which restores the soil.
What are the three different types of rocks?
Igneous, Metamorphic and Sedimentary
What happens when a rock goes through a chemical reaction?
The rock goes through a chemical change.
What is seismic activity?
The frequency and intensity of earthquakes experienced over time.