Jeopardy
Constructive and Destructive
Forces Review
Red
100
Yellow
100
Green
100
Blue
100
Purple
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
100
Why do people spend millions of
dollars on beach reclamation?
If we didn’t spend money on beach reclamation, the
beaches would all erode and we wouldn’t have beaches.
Main
200
Why do people dredge sand from a
channel?
Channels are dredged so boats can pass through.
Main
300
What happens to the sand that is dredged
from the channels?
The sand is used to replace sand that has been eroded
from the beaches.
Main
400
What is deposition and how does it
change the Earth?
Deposition is the process by which sediment drops out of
the water and adds to the landform, creating a delta.
Main
500
How does weathering change the
Earth’s surface?
Weathering changes the Earth’s surface by braking down
rocks on the Earth’s surface.
Main
100
Is weathering a slow or quick process?
Weathering is a slow process.
Main
200
How does a volcano help build up new
land?
A volcano helps build up new land when the lava cools,
creating a new land.
Main
300
How does a glacier help create new
soil?
A glacier helps create new soil because they carry soil and
drop it at the bottom of the glacier.
Main
400
The movement of two continents can
be explained by the movement of the
plates, called ______________.
Plate Tectonics
Main
500
What is the difference between lava and
magma.
Lava is hot molten rock that flows onto Earth’s surface and magma is
melted rock that flows underneath Earth’s surface.
Main
100
What tools to Seismologists use to
monitor the Earth’s crust?
Seismographs are used to help record the Earth’s surface
for movement. It also helps locate the epicenter.
Main
200
What is an epicenter?
The epicenter is a spot above the fault where Earthquakes
start.
Main
300
What are the two methods of
controlling flooding and how do they
stop flooding?
Levees: walls of Earth and keep water from
coming onto land
Dams: hold back the flow of water
Main
400
How does erosion and deposition of
sand cause problems for humans?
Erosion and deposition remove sand from one
beach and builds up another. Sand may also fill
the channel, causing the water to become too
shallow for ships to pass.
Main
500
What is a jetty and how does it help
restore beaches?
A jetty is a man-made wall that is used to
help protect the beaches from erosion.
Main
100
What is a destructive force?
A destructive force is a force that builds up
the Earth’s surface and includes
weathering, erosion, impact of organisms
and earthquakes.
Main
200
What is a constructive force?
A constructive force is a force that builds up the
Earth’s surface and includes deposition,
earthquakes and faults.
Main
300
Constructive, Destructive or
Both…why?
Earthquake
Both because it can knock things down and
form mountains and lakes.
Main
400
Constructive, Destructive or
Both…why?
Weathering
Destructive-Weathering tears down the
Earth’s surface
Main
500
Constructive, Destructive or
Both…why?
Volcanoes
Both, because volcanoes’ magma can destroy
towns, but they are constructive because
magma builds up, creating new land.
Main
100
Constructive, Destructive or Both…why?
Glaciers
Both because glaciers can destroy
everything in its path, but can also build up
new landforms.
Main
200
Constructive, Destructive or
Both…why?
Tsunami
Destructive because a tsunami destroys
everything in its path.
Main
300
Constructive, Destructive or
Both…why?
Erosion
Destructive-tearing down of Earth’s surface
main
400
Constructive, Destructive or Both…why?
Impact of organisms AND landslides
Destructive because it’s tearing down or
destroying Earth’s surfaces.
Main
500
Constructive, Destructive or Both…why?
Faults AND Deposition
Constructive because faults form mountains
and depostion adds soil or sand to an
existing landform.
Main