The Best Experiments Are Those in Which

question 81

Multiple Choice

The best experiments are those in which:

• A) all variables are allowed to act freely
• B) all variables are held constant except the ones manipulated
• C) all factors provide the desired results
• D) the subjects are unpaid volunteers
• E) two variables are held constant while all of the others are manipulated

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Definitions:

Magnetic Field

A region of space characterized by the presence of a magnetic force, such as that surrounding a magnet or the Earth.

Convergent Boundary

A tectonic boundary where two plates are moving toward each other, often resulting in mountain building, earthquakes, and volcanism.

Slab Pull

A plate-driving force generated by the sinking action of a relatively dense, subducted slab.

Ridge Push

A plate-driving force that results from the tendency of an oceanic plate to slide down the sloping lithosphere-asthenosphere boundary near a mid-ocean ridge.