What is the outermost layer of the Earth called?
D.Crust
Earth Science
Test your knowledge of geology, weather, climate, and the planet we live on.
25 questions
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What scale is used to measure the magnitude of earthquakes?
C.Richter scale
What is the process by which rocks are broken down by wind, water, or ice?
D.Weathering
What type of rock is formed from cooled magma or lava?
D.Igneous rock
What is the center of the Earth called?
D.Core
What is the layer of gases surrounding Earth called?
D.Atmosphere
What is the name of the supercontinent that existed about 300 million years ago?
B.Pangaea
What scale measures wind speed?
C.Beaufort scale
What type of rock is formed from layers of sediment compressed over time?
D.Sedimentary rock
What is the name of the theory that describes the movement of Earth's lithospheric plates?
C.Plate tectonics
What is the most abundant gas in Earth's atmosphere?
D.Nitrogen
What is the boundary between two tectonic plates called?
A.Plate boundary
What type of cloud is often associated with thunderstorms?
C.Cumulonimbus
What is the process by which water moves from the Earth's surface to the atmosphere?
D.Evaporation
Diamond and graphite are both forms of which element?
D.Carbon
What is the name of the scale that measures tornado intensity?
A.Enhanced Fujita scale
What is the approximate age of the Earth?
A.About 4.5 billion years
What type of rock is marble?
B.Metamorphic rock
The San Andreas Fault is an example of what type of plate boundary?
A.Transform boundary
What is the name of the scale used to measure hurricane intensity in the Atlantic?
A.Saffir-Simpson scale
What percentage of Earth's surface is covered by water?
C.About 71%
What is the name of the layer in the atmosphere where most weather occurs?
A.Troposphere
What mineral is the hardest on the Mohs scale?
C.Diamond
What is the name of the current geological epoch, characterized by human impact?
D.Anthropocene (proposed)
What do we call molten rock beneath Earth's surface?
C.Magma