Earth’s Interior
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Define anomaly.
A deviation from the expected norm or standard in data or behavior.
What does heterogeneous mean?
Consisting of different or diverse elements or components.
True or false: Homogeneous materials have uniform composition.
TRUE
Fill in the blank: Seismic waves are generated by _______ in the Earth.
Earthquakes
What are primary waves?
The fastest seismic waves that travel through solids and liquids.
What are secondary waves?
Seismic waves that only travel through solids and are slower than primary waves.
Define cross section.
A cut or slice through an object to reveal its internal structure.
True or false: Seismic waves can provide information about Earth’s interior.
TRUE
What type of wave is a P-wave?
A primary wave that compresses and expands material in the direction of travel.
What type of wave is an S-wave?
A secondary wave that moves material perpendicular to the direction of travel.
Fill in the blank: Heterogeneous mixtures can be separated by _______.
Physical means
Define homogeneous mixture.
A mixture with a uniform composition throughout, such as saltwater.
What is the main characteristic of anomalies in data?
They indicate unusual patterns or outliers that differ from the norm.
True or false: P-waves can travel through both liquid and solid materials.
TRUE
Fill in the blank: S-waves cannot travel through _______.
Liquids
What is the significance of a cross section in geology?
It helps visualize the layers and structures beneath the Earth’s surface.
Define seismic wave.
Waves of energy that travel through the Earth, generated by geological events.
What is an example of a homogeneous substance?
Pure water or air.
True or false: Anomalies are always negative indicators.
FALSE Anomalies can also indicate new discoveries or insights.
What does it mean if seismic waves are reflected?
They bounce back after hitting a boundary between different materials.
Fill in the blank: Seismic waves help in _______ the Earth’s structure.
Mapping
What is the primary use of seismic waves in geology?
To study and understand the Earth’s internal structure and processes.
Define anomaly detection.
The process of identifying rare items, events, or observations that raise suspicions.
True or false: Heterogeneous materials are always visible to the naked eye.
FALSE