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WorksheetsConvection & the Mantle 1.7
Total questions: 15
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
____________ occurs when heat is transferred into an object through motion or movement; an example would be boiling water.
a)
conduction
b)
convection
c)
radiation
2.
The mantle in the Earth continually heats up and cools down using convection currents.
a)
True
b)
False
3.
____________ occurs when an energy source transfers heat directly to another object through space; an example would be an object becoming warm by sitting in the sunshine.
a)
conduction
b)
convection
c)
radiation
d)
heat
4.
____________ occurs when heat is transferred to an object through direct contact with particles; an example would be the heat from a stove transferring to your hand through the handle on a pot or pan.
a)
conduction
b)
convection
c)
radiation
d)
heat
5.
The transfer of heat by the movement of heated fluid is called conduction.
a)
True
b)
False
6.
Mantle material rises in convection currents because heated materials become more dense.
a)
True
b)
False
7.
The heat from the Sun reaches Earth through convection.
a)
True
b)
False
8.
Convection currents in the Earth’s crust cause volcanoes.
a)
True
b)
False
9.
Convection currents affect the movement of plates on the Earth's crust.
a)
True
b)
False
10.
Convection currents produce the heat in the Earth’s interior.
a)
True
b)
False
11.
What kind of currents cause heat transfer in the Earth?
a)
convection currents
b)
radiation currents
c)
conduction currents
d)
ocean currents
12.
The transfer of energy through empty space is called
a)
conduction
b)
radiation
c)
convection
d)
subduction
13.
When the heat source is removed from a fluid, convection currents in the fluid will ____.
a)
speed up
b)
change direction
c)
continue forever
d)
eventually stop
14.
Scientists think that convection currents flow in Earth’s ____.
a)
continents
b)
mantle
c)
lithosphere
d)
inner core
15.
Scientists believe that differences in ____ cause hot, plastic-like rock in the asthenosphere to rise toward Earth's surface.
a)
magnetism
b)
weight
c)
density
d)
force
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