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Exploring Space Ch1 L2

C Flight 
Horizontales
The average distance between the Earth and the Sun (p. 26)
Where the Earth is the center of the universe (p. 25)
A shift from Ptolemy’s geocentric model to the heliocentric model with the Sun at the center of the Solar System (p. 24)
A geometrical shape where each point on the ellipse is at the same total distance from two fixed points, or foci (p. 30)
The planet’s closest approach to the Sun (p. 31)
Verticales
Changes in thoughts and beliefs in modern science that occurred from 1550-1700 (p. 24)
Refers to the ability of a given theory to allow predictions to be made (p. 26)
Where the Earth and other planets orbit the Sun (p. 24)
The planet’s farthest distance from the Sun (p. 31)