Scientific Reasoning / Soil Basics
Earthquakes & Volcanoes
Weathering & Erosion; Minerals & Rocks
Survey of the Seas
Misc.
100

The study of soil.

Pedology

100

The beginning point of an earthquake.

Hypocenter / Focus

100

Most abundant metal found in the earth's crust.

Aluminum

100

Huge chunks of floating ice.

Iceberg

100

Highest point of a wave.

Crest

200

The study of reasoning.

Logic

200

What percent of volcanoes occur in the Ring of Fire.

75%

200

Softest mineral according the MOHs Scale.

Talc

200

These are floating observation stations that transmit data to oceanographers.

Buoys

200

Small research submarines are called ____.

Submersibles

300

Contains a range of sand, silt, clay, and humus.

Loam

300

Another name for earthquake vibrations.

Seismic Waves

300

Substances that exist in naturally in the earth's crust as single uncombined elements.

Native Elements

300

The earth's rotation influences surface currents so that they move in a circular path called a ___.

Gyre

300

A conclusion based on reasoning from evidence.

Inference

400

Factor that is manipulated in an experiment.

Independent Variable

400

This volcano has gradually sloping sides and relatively mild eruptions.

Shield Volcano

400

Eroded rock fragments being set down in a new location.

Deposition

400

Occurs when mud or silt mixes with seawater.

Turbidity Current

400

How much organic material is found in most soils?

4-5%

500

A sibstance that stimulates the rapid growth of leaves.

Nitrogen

500

Area where the upper mantle merges with the lower mantle.

Transition Zone

500

All silicates cotain the elements silicon and ____.

Oxygen

500
These two things affect the density of seawater.

Temperature and salinity 

500

Unit of measurement for hydrostatic pressure.

Kilopascal