The study of soil.
Pedology
The beginning point of an earthquake.
Hypocenter / Focus
Most abundant metal found in the earth's crust.
Aluminum
Huge chunks of floating ice.
Iceberg
Highest point of a wave.
Crest
The study of reasoning.
Logic
What percent of volcanoes occur in the Ring of Fire.
75%
Softest mineral according the MOHs Scale.
Talc
These are floating observation stations that transmit data to oceanographers.
Buoys
Small research submarines are called ____.
Submersibles
Contains a range of sand, silt, clay, and humus.
Loam
Another name for earthquake vibrations.
Seismic Waves
Substances that exist in naturally in the earth's crust as single uncombined elements.
Native Elements
The earth's rotation influences surface currents so that they move in a circular path called a ___.
Gyre
A conclusion based on reasoning from evidence.
Inference
Factor that is manipulated in an experiment.
Independent Variable
This volcano has gradually sloping sides and relatively mild eruptions.
Shield Volcano
Eroded rock fragments being set down in a new location.
Deposition
Occurs when mud or silt mixes with seawater.
Turbidity Current
How much organic material is found in most soils?
4-5%
A sibstance that stimulates the rapid growth of leaves.
Nitrogen
Area where the upper mantle merges with the lower mantle.
Transition Zone
All silicates cotain the elements silicon and ____.
Oxygen
Temperature and salinity
Unit of measurement for hydrostatic pressure.
Kilopascal