Earth's Layers
The thinnest layer of Earth's layers.
What is crust?
Tree rings can tell scientists _____________.
what the weather conditions were like
how old the tree is
What are tectonic plates?
Lithosphere divided into pieces
Two plates that move apart.
What is divergent boundary?
As we travel deeper into the Earth, what happens?
Pressure and temperature go up
The thickest of Earth's layers.
What is mantle?
What type of rock are fossils most likely found in?
sedimentary rock
This describes the large-scale movement of the Earth’s lithosphere.
plate tectonics
Two plates that come together or collide.
What is convergent boundary?
What layer of the Earth is solid because of the pressure from other layers?
inner core
The layer of the Earth that is made up of tectonic plates.
What is the lithosphere?
Fossilized evidence that shows animal activity and forms in sedimentary rock.
What is trace fossil?
The spread of molten rock that comes up through the cracks of tectonic plates and new oceanic crust is formed is called_____________.
sea-floor spreading
Two plates that slide past each other horizontally.
What is transform boundary?
This is the geological process of the past that can be seen in the geological processes occurring today.
What is uniformitarianism?
Movement of this layer causes the movement of the continents.
What is the mantle?
Fossils can tell scientists, what three things?
The environment millions of years ago
How plants and animals have changed over time
How the Earth has changed over time
What landforms are formed by the movement of tectonic plates?
mountains
volcanoes
trenches
ridges
What layers make up the lithosphere?
crust
upper mantle
This describes the weather conditions over a long period of time.
What is climate?
In this layer you will find convection current.
What is the mantle?
Name 3 things that were used as evidence of Pangea.
fossil correlation
rocks/mountains
continents fit together like a puzzle
Alfred Wegener’s theory of continental drift was not well accepted because he could not say what force could be big enough for the continents to move. Current theories explain this movement with?
convection currents in the mantle
What happens when a continental plate and oceanic plate converge?
subduction
Pangea is Greek for, “___________________.”
All the Earth or All Earth