Show:
True or False
Teachers choice
Definition
Landforms and Features
Layers
100
Earth can be divided into four layers.
True!
100
What is the movement of lava in the mantle based on density
convection
100
List the layers in order of density least to greatest
crust, mantle, inner core, outer core
100
Describe a valley.
A low, narrow area on the crust.
100
The layer you live on.
Crust
200
The inner core is liquid.
False! The center is a solid and the outer part is a dense liquid.
200
Beneath the crust...
lies the mantle.
200
The innermost layer of the Earth
core
200
Name three features that have water.
Glacier, ocean, lake
200
What is the thickness of the crust under the continents?
about 10 km.
300
Plateaus have flat tops.
True
300
What landform is surrounded by water on three sides
peninsula
300
What are landforms?
The solid features formed on Earth's crust.
300
What is the main force for creating landforms?
Moving water
300
In the mantle what layer heats the lava up to create the convection currents
outer core
400
Magma erupts from a volcano because of pressure inside the Earth.
True!
400
What is the equation for density
mass/volume
400
What is a plain?
A large, mostly flat area
400
What is the difference between a plateau and a hill?
A plateau has a flat top and a hill has a round top.
400
If the core is hot enough to melt, why is the center of it a solid?
It's packed so tightly that it remains mostly solid.
500
Some valleys are formed by rivers, while others are formed by oceans.
False! Some valleys are formed by rivers or glaciers.
500
It is a landform formed by limestone wearing away under the ground
sinkhole
500
A high plain
Plateau
500
What landform is Mt. St. Helens?
Volcano!
500
Compare Earth's layers to a peach. (Use at least three sentences)!
Earth's crust is like the thin skin of a peach. The flesh is like the mantle of the Earth. Finally, the pit (seed) of peach is like the core.