Vocab 1
Individual features of the land
Landforms
One complete orbit around the sun
Revolution
Violent and sudden movements of the Earth’s crust
Earthquake
Giant, slow moving sheets of ice
Glaciers
How many moons does Earth have?
1
Natural surroundings
Environment
The uppermost layer of the Earth
Crust
Huge waves caused by undersea earthquakes
Tsunamis
Deep valleys that line the ocean floor
Trenches
Atlantic, Pacific, Southern, Indian, Arctic
A planet’s own path around the sun
Massive land areas
Continents
The process of wearing away or moving weathered material
Erosion
A piece of land with water on three sides
Peninsula
Name all 7 continents.
North America, South America, Asia, Europe, Australia, Africa, Antarctica
The layer of air surrounding earth
Atmosphere
The process of breaking surface rock into boulders, gravel, sand, and soil
Weathering
Height above sea level
Elevation
A body of land smaller than a continent and completely surrounded by water
Island
What is a leap year?
A year with 1 extra day.
An imaginary line that runs through the Earth’s center through the North and South poles
Axis
Low-lying stretches of flat or gently rolling land
Plains
A narrow piece of land that connects two larger pieces of land
Isthmus
A narrow body of water between two pieces of land
Strait
What does the theory of plate tectonics state?
The crust consists of plates, or huge slabs of rock, that move.