Optical Illusions and Mirage on the Great Plains

Optical Illusions and Mirage on the Great PlainsSocial Studies · Economics · Grades 3–5Lesson plan

• Name at least one environmental condition that must be present for a mirage to occur. • Why were mirages dangerous to caravans on the Santa Fe Trail? Objective Explain the scientific mechanism behind mirages and identify their historic presence and impact along the Great Plains during the fur trade era. Background Overview Duration: 60 Minutes.

From National Park Service · Public domain (US Gov) · original source

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