Show:
Examples of Rocks
Weathering, erosion, and deposition
Earth
Rock Cycle
Challenge
100
Gneiss is an example of a __________ rock.
metamorphic
100
Sediments are formed due to wind and water breaking off parts of rock. This process is called __________.
weathering
100
The outermost, thinnest, and most solid layer of Earth is which layer?
The crust.
100
How are igneous rocks formed?
Molten lava cools and hardens to form igneous.
100
The preserved remains of an ancient plant or animal is a __________.
fossil
200
True or false. Sandstone is a sedimentary rock.
True.
200
After sediments are weathered by wind, water, and ice what happens?
They erode or are transported to a new location.
200
Draw and label the four layers of the Earth.
from outside to inside: crust, mantle, outer core, inner core
200
What is the difference between extrusive and intrusive igneous rocks?
Intrusive igneous rocks are formed inside the Earth and extrusive igneous rocks are formed at the surface of the Earth.
200
True or False. Earth is about 4.5 billion years old.
True. Earth is 4.54 billion years old.
300
Is coal a rock? If so, what type?
Yes coal is a sedimentary rock.
300
What is deposition?
The process by which sediments, soil, and rocks are added to a landform, a land mass, or the bottom of a body of water due to erosion.
300
All the continents were once one super continent known as what?
Pangaea
300
When layers of sediments are tightly packed tougher over years and years, what type of rock is formed?
Sedimentary rocks are formed from the pressure of the layers.
300
___________ ________ is the theory that the continents are slowly moving.
Continental drift
400
How are slate and shale related?
Slate is a metamorphic rock derived from an original shale-type sedimentary rock.
400
Which type of rock is eventually formed because of weathering, erosion, and deposition?
Sedimentary rocks
400
What usually form at fault lines? (I'm looking for two answers)
volcanoes and earthquakes
400
How does an igneous rock become a metamorphic rock?
The igneous rock would be compacted and heated (heat and pressure form metamorphic rocks).
400
In Virginia, why might fossils be found near the coastal plains/tidewater, Appalachian mountains, and the Piedmont regions? Explain.
Due to weathering, erosion, and deposition most of the fossils found in Virginia are found near the coastal plains/tidewater, Appalachian mountains, and the Piedmont regions.
500
Why do you think people pay a lot of money to have granite counter tops in their kitchens? It's just rock, right?
Granite is an example of an intrusive igneous rock. Intrusive igneous rocks are found in the Earth making it more difficult to get to them than extrusive igneous rocks. Therefore, they are more rare and expensive.
500
Draw a diagram of a sediment traveling through weathering, erosion, and deposition. Include descriptions of each.
View image.
500
Name and describe the three different fault boundaries.
When tectonic plates move together they form convergent boundaries. When plates move apart they form divergent boundaries. When plates slide past each other they form sliding (strike-slip or transform) boundaries.
500
Draw the complete rock cycle including the small circles within the cycle.
View image.
500
Compare and contrast increasing depth in the ocean and increasing depth in the Earth.
As depth increases in the ocean heat decreases. As depth increases in the Earth heat increases. As depth increases in both the ocean and the Earth pressure increases.