Constructive Processes
Destructive Processes
Weathering
Erosion
Deposition
Volcanoes
Technology
100
How do constructive forces affect the Earth?
Constructive forces build the Earth up.
100
How do destructive processes affect the Earth?
Destructive processes destroy or break down the Earth.
100
What is weathering?
The breaking of rocks into sediment.
100
What is erosion?
The movement of sediment from one place to another.
100
What is deposition?
The settling of sediment.
100
What is a constructive process of underwater volcanoes?
They can construct islands.
100
What is a seismograph used for?
to measure earthquakes
200
What is an example of a constructive process that creates sand dunes?
deposition
200
What does this picture represent?
Ice wedging
200
How do animals cause weathering?
When they dig up the ground, they break the rocks up.
200
How does ice effect erosion?
Glaciers carry sediment when they move.
200
What is a destructive process of underwater volcanoes?
They can destroy coral reefs.
200
What scale is used to measure earthquakes?
Richter Scale
300
Which is a constructive process?
A. weathering
B. deposition
C. erosion
B. deposition
300
What does this picture represent?
Plant weathering or root wedging
300
How do plants cause weathering?
When plants or seeds get into the cracks of rocks and grow, they cause the crack to expand and break.
300
How does water effect erosion?
Water picks up loose sediment and transports it from one place to another.
300
True or False
Deposition helps create beaches.
True
300
How does lava create new land?
It hardens which creates rock and new land.
300
_______ are built across waterways to block water flow.
dams
400
After this volcano erupts, what will happen to the lava?
It will harden into rock which forms new land.
400
What are the two destructive processes we talked about?
weathering and erosion
400
How does ice cause weathering?
When the water freezes in a crack, it expands causing a rock to crack.
400
How does gravity effect erosion?
Gravity causes landslides.
400
Fill in the blank
_____ are landforms that form from the deposition of sediment carried by a river into a larger body of water.
Deltas
400
True or False
When volcanoes erupt the lava melts the volcano causing it to get smaller over time.
False.
400
What causes a Tsunami?
Underwater earthquakes
500
formation of mountains, plates colliding
500
How does this guy cause weathering?
When he digs, he breaks up the rock.
500
Cracks and potholes in roads are usually caused by __________________________.
Ice wedging (weathering)
500
Smooth rocks are an indicator of _________ erosion.
Water
500
How are sand dunes created?
When wind and water deposit soil through deposition.
500
What is lava called before it comes to Earth's surface?
Magma
500
What is a way humans can help limit the destructive forces of flooding from hurricanes?
They can build levees or dams to control water flow.