Vocabulary
Convergent plate boundary
When plate boundaries collides
What does the magma do in the process?
What is magma forming into new ocean crust
Explain why the Pacific ocean is shrinking.
Subduction is happening on the outside of the Pacific Plate, making the oceanic plate go underneath the continental plates, recycling old ocean floor into the mantle.
What is the mid ocean range?
underwater ocean mountain range
Transform boundary
When two plates slide past each other
The old crust gets recycled into what?
What is magma
Where is the ring of fire?
Surrounding the Pacific Ocean
Which 2 continents fit best together like a puzzle?
South America and Africa
Divergent Plate Boundary
What is the plate boundary that spreads apart
South America, North America, Asia, Australia
Which of the two types of crust is denser?
Oceanic crust
Pangea
The name for the giant land mass when all the continents used to be connected.
What is continental crust made of?
Granite
What type of rocks make up the oceanic crust?
Basalt
Which of the oceans is growing larger?
Atlantic
Subduction
What 2 natural features are usually created around subduction zones?
Trenches and volcanoes
What two natural processes happen at the ring of fire?
Earthquakes and volcanoes
What kind of rock is formed when magma touches water?
Igneous rock