Rock Types
How can metamorphic rocks be formed from igneous rocks?
Through heat and pressure
outermost layer
crust
what is the largest ocean?
pacific ocean.
What is weathering?
Weathering is the process by which rocks, soils, and minerals are broken down at the Earth's surface or near the surface through chemical and physical processes.
This scientist proposed the theory of continental drift, suggesting that the continents were once joined together in a super-continent called Pangaea
Alfred Wegener.
What are the three main types of rocks?
Igneous, sedimentary, and metamorphic
second to the outermost layer
mantle
What role do ocean currents play in shaping coastlines and affecting climate?
transport heat and moisture, impacting coastal temperatures and precipitation patterns
What are the two main types of weathering?
The two main types of weathering are physical weathering (also called mechanical weathering) and chemical weathering.
The jigsaw-like fit of the continents, especially South America and Africa, is considered one of the key pieces of evidence supporting this theory
continental drift
rock formed by heat and pressure
metamorphic rock
coolest layer
What are the main types of marine sediments and their origins?
lithogenous, biogenous, hydrogenous, and cosmogenous
the type of weathering that involves chemical reactions?
chemical weathering
What is the name of the mechanism that Wegener proposed to explain how continents could move, though later found to be incorrect?
continental drift.
formed from cooled lava/magma
igneous rocks
hottest layer
inner core
How are the continents and oceans related to the transition from continental to oceanic crust?
Oceanic crust, denser than continental crust, is found beneath the oceans, while continental crust forms the landmasses.
Name the type of weathering where rocks are broken down by physical forces like freezing and thawing, or the growth of roots in cracks.
mechanical/physical weathering.
The distribution of these ancient rock formations and fossils across different continents provides strong support for continental drift
similar rock types and fossils
rock compressed
earths liquid layer
outer core
What are the five main ocean basins on Earth?
Atlantic, Pacific, Indian, Antarctic, and Southern.
What are some factors that can increase the rate of weathering?
Factors that can increase the rate of weathering include increased temperature, rainfall, and exposure to acidic conditions.
Wegeners theory that was later proved to be incorrect?
continental drift