Pangea & Continental Drift
This type of evidence uses matching fossils on different continents to support continental drift.
What is fossil evidence?
Deep valleys on the ocean floor are called these.
What are trenches?
This type of evidence comes from observations or data scientists can observe more directly.
What is direct evidence?
At this boundary type, plates move toward each other.
What is a convergent boundary?
Tectonic plates move slowly on top of this layer.
What is the mantle?
This is the movement or vibration of the ground when part of Earth’s crust shifts.
What is an earthquake?
In the Pangea Puzzle, we looked for continents that fit together like these (come in boxes of 500, 1000, etc.).
What are puzzles (or puzzle pieces)?
What substance escapes through rifts on ocean ridges?
What is magma?
This type of evidence uses related observations and logical reasoning to support an idea.
What is indirect evidence?
This plate boundary happens when plates move away from each other.
What is a divergent boundary?
Heat cycles in the mantle that help drive plate movement are called these.
What are convection currents?
Earthquakes are common near transform and convergent boundaries because plates create lots of this.
What are stress and pressure?
This type of evidence uses the shapes/coastlines of continents to support continental drift.
What is geographical fit evidence?
This is where new ocean crust forms.
What is ocean ridges?
In the sealed-container activity, students used sounds, feelings, and observations to make this kind of educated guess.
What is an inference?
When a plate slides under another is called
Subduction
Earth’s surface is broken into giant slabs of rock called these.
What are tectonic plates?
Which of the follow tools allows scientists to measure ground vibration
a) Seismograph
b) Richter Reader
c) Seismogram
What is a) Seismograph?
The name of the giant supercontinent that existed when many continents were joined together.
What is Pangea?
Huge underwater mountain ranges on the ocean floor are called these.
What are ocean ridges?
Scientists cannot travel all the way through Earth, so they often use this type of evidence to study Earth’s layers.
What is indirect evidence?
This plate boundary happens when plates slide horizontally past each other.
What is a transform boundary?
True or false. Via tectonic plate movement, we are currently moving 0.000000002 km/h.
What is true?
When oceanic crust collides with continental crust, this crust usually subducts because it is more dense.
What is oceanic crust?
Pangea breaking apart is an example of this scale of Earth surface change.
What is a large-scale continental change?
Molten rock comes out at ocean ridges, cools, hardens, and pushes older rock away. This process is called this.
What is sea floor spreading?
An educated, testable guess that answers a scientific question based on what you already know.
What is a hypothesis?
These fractures in Earth’s crust can form when plates slide past each other.
What are fault lines?
Name the 2 types of crust
Continental and Oceanic.
When two continental plates collide, they usually form these instead of deep subduction.
What are folded mountains / large continental mountains?