Layers of the Earth
Name the four main layers of the Earth.
Crust, Mantle, Outer Core, Inner Core
The Grand Canyon is the result of which process?
Constant water erosion by the Colorado River.
Natural features on the Earth's surface are called
landforms
What are the three types of rocks?
Igneous, Sedimentary, and Metamorphic.
The Earth is comprised of what?
Continents and bodies of water
Which layer is composed of mostly liquid iron and nickel?
The Outer Core
What are the four main causes of erosion?
The four main causes of erosion are water, ice, wind, or gravity.
Greenland are a type of what landform?
Islands
What is sediment and how is it created?
Sediment is crushed rocks, rubble, or organic material. It is created by weathering and erosion, and deposited by deposition.
When new land is formed, shaped, or change the results are
Landforms
Which layer is a rocky layer made up of both solid and liquid?
The Mantle
Deposition is the dropping of sediment by what four factors?
These factors are wind, water, ice, or gravity.
What landform is created by by volcanic activity, or when rock layers are pushed together.
How are metamorphic rocks created? Name three metamorphic rocks.
Metamorphic rocks are formed when existing rock is subjected to extreme heat and pressure. Three metamorphic rocks that we talked about were marble, quartzite, and slate.
Name three natural disasters.
Earthquakes, volcanic eruptions, blizzards, floods, tsunami, tornadoes, hurricanes, famine, windstorms, tidal waves, droughts, hailstorms, avalanches, etc.
This layer is made up of rocks and soil, and forms the land.
The Crust
Explain how water could cause weathering.
In the video we watched on landforms, they talked about 15 different landforms. Name 5 of these landforms.
mountains, hills, island, estuary, river, lake, valley, peninsula, isthmus, bay, coral reef, lagoon, pond, plain, and plateau
How are sedimentary rocks created? Name three sedimentary rocks.
Sedimentary rocks are formed sediment is compacted or cemented together. Three sedimentary rocks that we talked about were limestone, shale, and sandstone.
Name two things that are caused by tectonic plate movement.
Earthquakes, volcanic eruptions, tsunamis
Is the inner core solid or liquid, and what is it made of?
It is solid and made up of mostly iron and nickel.
Explain how weathering, erosion, and deposition work together to change our landscape.
Rocks get broken down by weathering, moved through erosion, and deposited, or dropped, somewhere else through deposition.
What is the difference between an isthmus, a peninsula, and an island?
How are igneous rocks created? Name three igneous rocks.
They are created when magma (under the Earth's surface-intrusive), or lava (above the Earth's surface-extrusive) cools or solidifies. Some igneous rocks we learned about were tuff, pumice, obsidian, and granite.
What are some factors that causes changes on the Earth's surface?
Natural disasters, weathering, erosion, and deposition, plate movement, etc.