When a Researcher Uses an Experimental Design as His or Her

question 6

Multiple Choice

When a researcher uses an experimental design as his or her research method, he or she is most likely examining:

• A) cause and effect.
• B) naturally occurring relationships.
• C) a person's thoughts and beliefs.
• D) the predictor variable.

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Definitions:

Felsic Lava

Magma or lava that is rich in lighter elements such as silicon and oxygen, typically forming light-colored volcanic rocks.

Volcanic Domes

Steep-sided, rounded extrusions of viscous lava from a volcano, often resulting from the slow extrusion of silica-rich magma.

Pyroclastic Flows

Fast-moving currents of hot gas and volcanic matter (collectively known as tephra) that move away from a volcano during an explosive eruption.

Eruption Column

A column of volcanic ash and gas that erupts into the atmosphere during a volcanic explosion.