Earth's Interior & History
This German scientist proposed the Theory of Continental Drift in 1912.
Alfred Wegener
The three main types of rocks explained by the rock cycle are igneous, sedimentary, and this third type.
Metamorphic Rock
A boundary where two plates are moving toward each other, which can build up the land and result in mountains or volcanoes.
Convergent Boundary
All of Earth's land masses collided to form this single supercontinent about 200 million years ago.
Pangaea
This rock type is formed when melted rock (magma) cools and hardens, either inside or outside the earth.
Igneous Rock
The movement of plates at this boundary is summarized by the phrase: "Transform Tectonic Plates ______!".
Slide!
This area in the Pacific Ocean is home to over 75% of the world's active and dormant volcanoes and about 90% of the world's earthquakes.
Ring of Fire
This is the thickest layer of the Earth, made of hot rock (magma), and is in constant motion like a "GIANT CONVEYOR BELT".
Mantle
The breaking down of rocks on Earth’s surface into sediment through agents like water, wind, and plants.
Weathering
At this type of boundary, two plates are moving away from each other, and new crust is formed as magma comes to the surface.
Divergent Boundary
This famous fault in California is one of the only places in the world where you can see the divide between two tectonic plates.
San Andreas Fault
Lithosphere, hydrosphere, and atmosphere
This era, which began 66 million years ago and continues to the present, is the most recent in the geologic timeline.
Cenozoic Era
This process, where sediment hardens over time through compacting and cementation, creates what type of rock?
Sedimentary Rock
This underwater ridge was formed due to the separation of the North American and Eurasian plates.
Mid-Atlantic Ridge
This is a MODERN theory that states the Earth's outer shell is made up of different moving plates.
Theory of Plate Tectonics
This layer, made of solid Nickel and Iron due to immense pressure, is the hottest spot on Earth, at over 5000 - 6000°C.
Inner Core
Formed under intense heat and pressure, these rocks often have ribbon-like layers and may have shiny crystals.
Metamorphic Rock
This type of convergent boundary, where one plate slides under another, is the process that can create volcanoes.
Subduction Boundary
These are the four main types of evidence Alfred Wegener used to support his theory of Continental Drift.
Jigsaw fit, fossil evidence, mountain ranges, and evidence of glaciers