Transcript Power Points

Landforms
3rd Grade
Volcano
Amayrani, Blanca, Jose M.
 A volcano is a landform, usually a mountain,
where lava erupts through the surface
 There are 1,510 active volcanoes in the world
 There are currently about 80 that are under the
oceans
 An opening in the earths crust through which
hot lava and gases are ejected
 A volcano is a crack in the earth
Plains
Hector, Dafne, Daniel, Anouly
 A large flat area of land without any trees
 Another name for the plains is a prairie
 The plains are a good place to grow
crops and raise cattle
Island
Fatima, Mayra, Alex, Angel
 A piece of land that is completely
surrounded by water
 Hawaii is an island
 An island is smaller than a continent
 On some islands there are volcanoes
Mountain
Juan, Paola, Salvador, Natalia
 An area of land that rises to a great height
 Some of the highest mountains are at the bottom of the
sea
 The largest range of mountains is in the Atlantic Ocean
 The highest mountain is Mt. Everest, it is 29,000 ft. tall
 The tip of the mountain is called the peak
 Between mountains there are valleys
 A “range” is a group of mountains
Mesa
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Mariela, Dulce, Andres
A hill with steep sides and a board flat top
A mesa is curved around on the sides
A mesa is similar to a plateau
Can be big and long
Mesas can be found in deserts
Mesa gets its name from the Spanish
word “mesa”, meaning “table”
Hills
Joanna, Jordan, Erika
 A hill is a raised unusual rounded part of the
surface
 Dunes in the sand hills may extend to 330
feet high
 Hills can be around mountains
 A hill is similar to a mountain, but smaller
Peninsula
Elian, Samuel, Yasim
 A piece of land that sticks out into water
from a large land mass
 A peninsula has water on 3 sides, and
land on the other
 Florida is a peninsula
Rivers
 Bodies of running water
 Fall line creates a waterfall – where land
drops suddenly
 Most rivers are fresh water that runs into
a lake or ocean
 Mississippi is the longest river in the U.S.
Gulf and Coast
 Large area of ocean that is almost
completely surrounded by land
 Land next to the ocean
Plateaus and Cliffs
 Land raised higher than the land around
it
 Rain, wind and water help create the
valleys and canyons below
 A plateau looks like a mountain, but
without a peak
 High steep walls make up a cliff
Desert
 Dry, rocky land
 Does not rain for weeks or months at a
time
 Cactus can grow in the desert because it
can store water
 Reptiles enjoy the hot sun in the desert
Oceans
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Atlantic Ocean
Indian Ocean
Pacific Ocean
Artic Ocean
Continents
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Asia
Europe
Africa
Australia
North America
South America
Antarctica
What countries are on our
continent, North America???
 Canada
 Mexico
 United States