Vocabulary
Earth's Layers
Major Geologic Events
Plate Tectonics
100
The middle layer of Earth; it is made up mostly of iron, magnesium, silicon, and oxygen. a. Mantle b. Core c. Crust d. Asthenosphere
a. Mantle
100
What is the layer of Earth that we live on?
The crust
100
What scale is used to measure earthquakes?
Richter Scale
100
Name the theory that states that the Earth is made up of continental and oceanic plates that move.
Plate tectonics theory
200
What is the vocabulary word for major geologic time divisions? a. Pangea b. Geologic Eras c. Continental Drift d. Cenozoic
b. Geologic Eras
200
Which layer of the Earth is the thickest?
The mantle
200
Where do earthquakes happen? a. Along faults b. In the asthenosphere c. In Earth’s core d. On continents
a. Along faults
200
What are the large, moving pieces of Earth's crust and mantle called?
Plates
300
_________ is molten rock INSIDE the Earth. a. Magma b. Fault c. Lava d. Earthquake
A. Magma
300
What is the thin layer of Earth that is located between the crust and the mantle?
The asthenosphere
300
Name the three types of waves measured during an earthquake.
L-waves, P-waves, & S-waves
300
What is the name that was given to the continents when they were all joined together?
Pangea
400
Hot spots are parts of Earth’s crust __________________. a. where boundaries diverge b. where earthquakes happen c. that are near the Equator d. where many volcanoes erupt
D. Where many volcanoes erupt
400
Where is the Earth's crust the THICKEST?
At the oceans
400
Name the three types of volcanoes.
Shield volcano, cinder cone volcano, and composite volcano
400
Name the three types of boundaries.
Convergent boundaries, divergent boundaries, & transform boundaries.
500
______________ boundaries are boundaries that move away from one another. a. Convergent b. Transform c. Divergent d. Ocean
C. Divergent
500
Earth’s outer core is liquid, but its inner core is solid because it is ________.
Under extreme pressure
500
When two continents collide, the rocks get pressed together. As a result, mountains may form. What is it called when two continents press together & form these mountains?
Compression
500
The newest landform on Earth was formed in 1963. It is a tiny island off the coast of Iceland. Name this island.
Island of Surtsey
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