Earth's Crust
How many layers are there in the earth's crust?
4
What was the name of the German scientist who found fossil evidence of the movement of plates?
Alfred Wegener
What is a volcano?
A rupture in the earth's crust.
What is a composite volcano?
These are the most common and are formed from layers of ash and lava. It causes them to have a cone shape.
What colour is puce?
Dark red/purplish brown.
What is the mantle?
The mantle lies beneath the earth's crust. It is a thick layer of molten rocks that slowly move.
Name the 3 types of plates.
Convergent (towards each othe)
Divergent (away from each other)
Transformation (past each other)
What was the name of the volcano which erupted in 79AD in Pompeii, killing whole villages?
Mt Vesuvius
What are the 4 materials ejected from a volcano?
1) Lava
2) Volcanic bombs
3) Thick ash
4) Gas
In which year was La Salle College established?
1954.
What is the inner core of the earth made of?
Solid material, mainly iron.
Scientists believe that all the earth's continents were once part of a supercontinent. What was it called?
Pangaea. It consisted of 2 main areas: Gondwanaland and Laurasia.
What is the name given to to the string of volcanoes around the edge of the Pacific Ocean?
The Ring of Fire.
What is magma?
A thick and sticky substance (liquid rock) found below the earth's surface.
What is the name of the Prime Minister's dog?
Toto
What is the Mariana Trench?
The deepest part of the earth, under the ocean in the Western Pacific Ocean.
What was the name of Alfred Wegener's theory?
Continental drift theory.
Why do volcanoes erupt?
Volcanic eruptions happen when gas bubbles inside magma, or hot liquid rock, expand and cause pressure to build up. This pressure pushes on weak spots in the earth's surface, or crust, causing magma to exit the volcano.
There are 3 stages to the life of a volcano. What are they?
Active
Dormant (sleeping)
Extinct.
Before Pope Francis became a priest, what was one of his jobs?
He was a bouncer.
He was also a janitor.
What is another name for the Earth's crust?
Lithosphere.
What is the name of the geographical feature caused by the separation of the North American and Eurasian Plates?
The Mid-Atlantic Ridge.
What is the name of the volcano which erupted in 2019 in NZ, killing 22 tourists?
Whakaari / White Island
What was the name of the volcano which erupted in 1991 in the Philippines, killing 900 people?
Mt Pinatubo.
What is a dik-dik?
A very small antelope, the size of a large dog.