Constructive
An area of new land at the mouth of a river, formed from sediments carried by the river.
What is a river delta
The process of moving sediment by wind, moving water, or ice
Erosion
Where would you most likely find a delta?
Near a river's mouth
I am a solid material that is moved and deposited in a new location. I can consist of rocks and minerals, as well as the remains of plants and animals. I can be as small as a grain of sand or as large as a boulder. What am I?
Sediment
What is WIGPAW?
Wind, ice, gravity, plants, animals, water
Causes weathering and erosion
Name 2 landforms created from constructed forces?
Mountains, island, volcano, sand dune,
What is weathering?
The process of breaking down rock by natural means
What is the difference between lava and magma?
Magma is composed of molten rock and is stored in the Earth's crust. Lava is magma that has reached Earth's surface
How do earthquakes happen?
The earth's plates collide on the fault lines
What does a geologist study? What does a seismologist study?
Studies earth processes
Studies earthquakes
Name 3 types of constructive forces
Fault, Earthquake, Volcano, Deposition, Wind (Sand Dunes)
What are 3 types of weathering?
Acid Rain, Ice expanding (cracking surfaces), tree roots growing and cracking roads, wind, water
(chemical, physical, mechanical, biological)
How is moving water a destructive process?
Carries away broken rock/sediment. Can break down rocks into sediment.
What does a seismograph do?
Measures the earth's vibrations to track and predict earthquakes
Can you say and do the first part of the W.E.D chant?
Break, Move, Drop
Break, Move, Drop
All of these processes happen to a rock
This constructive force moves sediment through water until it is deposited to create a new landform
What is deposition?
Name one way humans are a destructive force on nature?
Pollution, deforestation, over crowding, carbon footprint
What is one landform made from erosion from water.
canyons, valleys, mesa, banks of a river, delta
What 2 destructive processes caused the volcano at Mt. Saint Helens to erupt?
earthquake, landslide
What are 2 ways we can control erosion and/or the effects of natural disasters?
Dams, levees, beach reclamation, jetties
How are sand dunes formed
The wind blows the sand and can shape hills or mounds of sand called dunes
What are two phenomenon that can be both destructive and constructive depending on the situation?
Earthquakes and volcanoes
What type of rain is especially destructive?
Acid Rain
Explain how earthquakes and volcanoes can be both constructive and destructive forces
Accept reasonable answers
What are the 4 layers of Earth's structure? Name one detail of each.
crust, mantle, outercore, innercore
answer can vary