Constructive
Destructive
Water
C and D forces
Other Science
100
An area of new land at the mouth of a river, formed from sediments carried by the river.
What is a river delta
100
The process of moving sediment by wind, moving water, or ice
Erosion
100
Where would you most likely find a delta?
Near a river's mouth
100
Volcanoes can be constructive. Give an example of a chain of islands formed by volcanic activity.
Hawaiian Islands
100
What can be used to show areas of land likely to flood?

GIS (Geographic Information Systems), Seismograph, Satellite Imagery, Doppler Radar

GIS (Geographic Information Systems)
200
This landform is created when two tectonic plates collide and one pusses up through the earth's crust : Convergent Plates
Mountains
200
What is weathering?
The process of breaking down rock by natural means
200
Why do sand dunes most likely form by an ocean
Water and wind can both move sand. Sand dunes form where the wind is strong and the sand deposits are plentiful. That is why the beach is the perfect location for them!
200
How do earthquakes happen?
The earth's plates collide on the fault lines
200
If a mountain experiences a decrease in height over a period time the mountain is likely going through what kind of process? Destructive or Constructive?
Destructive
300
Name 3 types of constructive forces
Fault, Earthquake, Volcano, Deposition, Wind (Sand Dunes)
300
What are 3 types of weathering?
Acid Rain, Ice expanding (cracking surfaces), tree roots growing and cracking roads, wind, water
300
How is moving water a destructive process?
Carries away broken rock/sediment. Can break down rocks into sediment.
300
What does a seismograph do?
Measures the earth's vibrations to track and predict earthquakes
300
Which landform is the result of a constructive force?

gorge, canyon, mountains, river valley

mountains
400
This constructive force moves sediment through water until it is deposited to create a new landform
What is deposition?
400
Name one way humans are a destructive force on nature?
Pollution, deforestation, over crowding, carbon footprint
400
Which of the following structures is built across a river to control the flow of water?


dam, levee, seawall, storm drain

dam and levee
400
Deposition can cause a river delta to form where a river empties into a larger body of water. True or False
True
400
Planting trees can help with the process of erosion because...
Trees help to slow wind which helps to prevent erosion.
500
How are sand dunes formed
The wind blows the sand and can shape hills or mounds of sand called dunes
500
What are two phenomenon that can be both destructive and constructive depending on the situation?
Earthquakes and volcanoes
500
What type of rain is especially destructive?
Acid Rain
500
Explain how earthquakes and volcanoes can be both constructive and destructive forces
Answers vary...

Earthquakes and volcanoes can destroy or build things

500
Which landform is created by a constructive process? valley, canyon, sea arch, sand dune
Sand Dune
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