From space the Earth looks
like a watery globe with
several large landmasses.
It spins slowly on its axis.
Continents
- major landmasses of the earth. There are 6 (7)
Africa
Antarctica
Asia
(Also known as Eurasia when counted as one)
Europe
Australia
North
America
South
America
The
World Ocean
72% of the Earth's surface is covered by one large body
of
water, The World Ocean. People have divided it into
4
oceans: Arctic, Indian, Atlantic, Pacific.
Seas
- small parts of oceans mostly surrounded by land.
For
example, the:
Caribbean
Sea
Mediterranean
Sea
Arabian
Sea
Barents
Sea
Bering
Sea
Black
Sea
Caspian
Sea
Coral
Sea
Japan
Sea
Red
Sea
Landforms-
are defined by their size, shape, and elevation.
Elevation is the distance
above sea level.
Valley
- An area of land lower in elevation than its
surroundings
Mountain
- An elevated area of land
Canyon
- A valley with very steep walls
Plateau
- A fairly flat area above surrounding land
Plain
-A large, flat area of land, usually without trees
Ocean
and Coastal Features - When land and water meet,
pieces
of land and bodies of water take on a variety
of
sizes and shapes.
Bay
- a body of water mostly surrounded by land
and smaller than a sea or ocean.
Strait
- A narrow passsage of ocean water joining two
larger bodies of water
Island
- land completely surrounded by water
Peninsula
- a fingerlike projection of land surrounded
on three sides by water
Archipelago
- A group or chain of islands
Lagoon
- a shallow body of salt water mostly surrounded
by land
Biomes-
Based on vegetation patterns (which are
caused
by differences in rainfall and temperature,)
scientists
have defined six major life zones called
BIOMES.
Grassland - Tall grasses, few or no trees
Rain forest - Thick forest, high rainfall
Desert - Sparse vegetation, very low rainfall
Tundra - Low plants, covered by ice and snow
most of the year
Coniferous forest (Taiga) - cone-bearing needle
leaf trees
Deciduous forest - Broadleaf trees that lose
leaves in the winter
Our
Ocean
Our ocean is, and has
always been, an important resource
for people.
It has provided trade
routes.
It has provided food.
It helps to provide oxygen
and rain.
The
Law of the Sea - Each nation has rights to ocean
waters
near its coast. The rest of the ocean is free
for
all to use. We try to keep from damaging
our
ocean.
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