Geology
DEFINITION
GEOLOGY
Greek
Earth
The study of
Geology = The study of Earth
INNER CORE
- HOT!!!! –
Thought to be as
hot as the surface
of the Sun!
- Solid
- Composed of Iron
and Nickel
OUTER CORE
• HOT!
(but not as hot as
the inner core)
• Liquid
• Composed of Iron
and Nickel
MANTLE
• Still hot! – but
not as hot as the
core!
• Largest layer
• Composed of
various materials
• Solid and liquid
CRUST
• Cool
• What we live on
• Composed of
rocks, various
materials make up
the crust
• Solid or Liquid?
Even though 70% of
the Earth’s surface
is water, there is
crust under the
water. The water sits
on top of the crust!
-The Earth’s crust moves!!!!!
-The continents have not always been arranged
like they are today.
- The
Earth’s crust
is divided
into
segments
called
plates.
http://www.uwmc.uwc.edu/geography/101/p
ananim.htm
Pangaea
• Supercontinent that existed 250 million
years ago
• All the land made up 1 continent until its
split into the modern day configuration
of the continents.
• Discovered by Alfred
Wegner in 1912, but
not accepted by the
public until after his
death in the 1950’s.