2. Continental Drift
Continental drift is the moving continents. Before we had earth
visual that called Pangaea.
Pangaea mean whole land. Then locations of continent is
changed by continental drift.
3. Continental Drift
The person who invent this
theory is Alfred Wegener
(1915)
According to Wikipedia
resource the theory was:
“All continent were joined
in one giant continent then
replace the location and
moved away from each
other.
4. Continental Drift
Evidence : People
found same type
of animals, rocks,
fossils and
mountain range
in two or more
different
continents.
5. The Ring of Fire
Earth Science – Lithosphere Layer
6. The Ring of Fire
is the ring of active and sleepy volcanoes. Ex:
Pacific ring of fire. A lot of volcanoes in coast of
continents around the pacific ocean.
Boundary type is convergent plate boundary.
It is important because arc and active volcanoes
appear by one tectonic plate goes another.
8. Mountain Building
• Mountains formed by many different ways.
Crashing two tectonic plates, lava came because of
volcanoes and turn to sold that make mountains.
• Types of mountains: Folded, Dome, Fault-Block
and Horst & Grabens.
• Folded mountains are created by tectonic plates
pushing each other.
Ex: Himalayan Mountains in Asia, the Alps in Europe
the Andes in South America, the Rockies in North America, the
Urals in Russia
9. Mountain Building
Dome mountains are created by
melted of rock getting up from
earth’s crust.
Fault-Block mountains are created
by cracking earth’s crust and
appeared block moving up or down.
Ex: The Sierra Nevada mountains in North
America, the Harz Mountains in Germany.
10. Mountain Building
Horst & Grabens mountains are formed from
extension of earth’s crust. In this type of
mountain broken block moving up and down.
