Vocabulary
Earth’s outermost layer of hard, solid rock that is underneath the soil, vegetation, and water.
What is the outer layer or crust?
Earth's outer layer is divided into sections called ____________.
What are plates?
Two plates move away from each other.
What is divergent?
Solid, most dense layer at the center of Earth.
What is the inner core?
This law states that in undisturbed sedimentary rock layers, the youngest rocks are at the surface and get older the deeper you dig.
What is the Law of Superposition?
This type of plate movement happens when 2 plates slide past each other in opposite directions.
What is a transform boundary?
The plates of Earth's outer layer __________________.
What is move?
Two plates move toward each other.
What is convergent?
True or False- Some continents are no longer touching because earthquakes and volcanoes pushed them apart.
False-
Continents are always moving slowly due to movement in the mantle.
These types of fossils can help to determine the approximate age of a rock layer because we know what time range they existed.
What are index fossils?
An underwater mountain range formed when two plates move apart.
What is a mid-ocean ridge?
Earth's plates move on top of a soft, solid layer called the __________________.
What is the mantle?
The type of boundary that lies between South America and Africa.
What is divergent boundary?
What is the innermost layer of the Earth?
What is the inner core?
This is the tallest mountain on Earth.
What is Mount Everest (Himalaya Mountain Range)?
A long, deep indentation in the ocean floor formed when two plates move together
What is a trench?
This process occurs when 2 plates collide and one plate slides under the other and into the mantle.
What is subduction?
Mid-ocean ridge, trench, and volcano.
What is landforms that are found near plate boundaries?
True or False- Continents slowly move apart as new crust is formed over millions of years.
True-
The soft, solid mantle fills the space.
This is the name of the scientist that proposed the Continental Drift Theory.
Who is Alfred Wegener?
An extinct reptile that lived about 300 million years ago.
What is Mesosaurus?
At divergent plate boundaries, rock rises from the mantle and _______, adding new solid rock to the edges of both plates.
What is cools and solidifies?
The type of current that is responsible for plate motion.
What is convection?
What is another word (not crust/outer layer) for Earth's outer layer?
What is the lithosphere?
This is the largest planet in our solar system.
What is Jupiter?