Download Notes for the Test Word Definition Pangaea Pangaea is the name

Notes for the Test
Word
Pangaea
Definition
Pangaea is the name given to the single landmass also known as
“supercontinent” that was present 200 million years ago
Continental Drift
continents were once part of a single landmass that broke apart and
have moved to their present locations.
Lithosphere
The crust and part of the upper mantle is called lithosphere
Plate Tectonics
The Earth’s crust and upper mantle are broken into sections called
plates.
Plates move around on top of the mantle like rafts
Plate Boundaries
Convergent
Definition
Convergent Boundary –
Boundaries between two plates
that are colliding
Divergent
Divergent Boundary - Boundary
between two plates that are
moving apart or rifting
RIFTING causes SEAFLOOR
SPREADING/
CREATING
Transform
Transform Fault Boundary Boundary between two plates that
are sliding past each other
EARTHQUAKES along faults
Crustal Features
 Volcanoes
 Islands
 Trenches
 Mountains
• Mid-ocean ridges (they are
like mountains in the
ocean)
• Rift valleys



Faults
Earthquakes
Tsunami
Different types of Convergent Boundary –
1. Continent-continent collision
2. Continent-ocean collision
(Subduction)
3. Ocean-ocean collision
(Seafloor Destruction)
Volcanoes
Trenches or deep sea trenches
which can result in the
formation of islands
Mountains
Notes for the Test
Topographic Map
A topographic map is a map that
represents natural features of the
land. It uses contour lines to show
changes in elevation.
Contour lines: tell us the elevation,
or height from sea level.
Contour interval: the distance
represented between each contour
line
Index contour: a bold contour line
that we can reference and count
from
If contour lines are closer together, the slope of
the land is steep.
If they are far apart, the slope of the land is
gradual or flat.
Steps for solving number 5 –
1. Calculate the difference between the two
contours elevations: 180-90=90
2. Calculate the total number of contour
intervals between 90 and 180. There are
3 contour intervals.
3. Divide the difference (90) with the
number of contour intervals (3): 90/3 =
30.
4. The contour interval is 30.