Chapter 5 Earth Changes
earthquake
landslide
erosion
weathering
mantle
lava
continent
volcano
deposition
the core
magma
continental shelf
abyssal plain
crust
gravity
glacier
ocean floor
trench
the breaking down of rocks into smaller pieces.
the wearing away and movement of weathered rock.
the dropping off of weathered rock.
a sudden movement of the rocks that make up Earth’s crust.
the rapid movement of rocks and soil down a hill.
a great area of land on Earth
Earth’s outermost layer on which the continents are located
The layer below the crust
the deepest and hottest layer of Earth.
a mountain that builds up around an opening in Earth’s crust.
Parts of the mantle and crust have melted rock.
Melted rock that flows onto land.
What causes a landslide?
a mass of ice that moves slowly across the land.
The land below the ocean
It lies under the ocean at the edge of a continent.
An wide and flat plain which stretches thousands of kilometers across the ocean.
A canyon on the ocean floor which is the deepest parts of the ocean floor.
What causes weathering?
1) Running water
2) wind
3) rain
4) temperature
What cause erosion?
1) Moving water
2) wind
3) glaciers
4) gravity
Earth also has seven great areas of land called continents.
What covers Earth’s surface?
: Water and land cover Earth’s surface.
About how much of land is covered by land?
: one fourth
What kind of land features that you can NOT find below the ocean?
1) mountains
2) valley
3) canyons
4) plans
5) mantle
Which part is Earth’s thinnest and coolest layer?
1) mantle
2) crust
3) outer core
4) inner core
How does magma is different to lava?
Which is not true about volcano?
a) volcanoes are always active.
b) A volcano is a mountain that builds up around an opening in Earth’s crust.
c)
Volcano could explode.
d) Volcano can change the land in a short time.