Plate Boundaries
What is a plate boundary?
Where plates meet
What layer of the earth do we live on?
The crust
What is the difference between magma and lava?
Magma is inside the crust and lava outside
Name an example of a volcano
- E15
- Mt. Etna
- Mt. Vesuvius
What happens during an earthquake
The ground shakes
Name the plate boundary where plates collide
Destructive
What layer of the earth is full of molten magma?
The mantle
What part of the volcano carries magma from bottom to top?
The vent
Why is the Pacific Ring of Fire famous?
It is covered in volcanoes
What is the point in the Earth's crust where an earthquake happens called?
The focus
Name the plate boundary where plates separate
Constructive
How many layers of the earth are there?
four
Where is the magma stored in a volcano?
The magma chamber
What category of volcano erupts regularly?
Active
What instrument measures earthquakes
Seismograph
Name the plate boundary where plates slide past or alongside one another
Passive
What are the two inside layer of the earth called?
Inner and outer core
What is the hole at the top of the volcano formed?
Crater
What category of volcanoes cannot erupt anymore?
What is the point on the Earth's surface where an earthquake happens called?
The epicentre
Name and explain the process that causes plates to move
Convection Currents:
- Heated magma rises
- Cools and creates friction
- This friction moves the plates
What are plates with oceans on them called?
Oceanic plates
How are volcanoes formed?
- Where plates meet, magma can rise up between cracks in the crust
- This builds up layers over time
- Eventually a volcano is built up and formed
What category of volcanoes have not erupted in a long time, but could erupt again?
Dormant
Why does it matter where an earthquakes epicentre is?
The most damage will be done here