KEY CONCEPT Earth rotates on a tilted axis and orbits the Sun.

equinox p. 710 solstice p. 710 BEFORE, you learned • Stars seem to rise, cross the sky, and set because Earth turns • The Sun is very large and far from Earth • Earth orbits the Sun NOW, you will learn • Why Earth has day and night • How the changing angles of sunlight produce seasons KEY CONCEPT Earth rotates on a tilted axis and ... ................
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