[ See Content Standard C (grades 5-8)] EARTH IN THE SOLAR SYSTEM The earth is the third planet from the sun in a system that includes the moon, the sun, eight other planets and their moons, and smaller objects, such as asteroids and comets.
(a system; includes; the moon, the sun, eight other planets and their moons, and smaller objects, such as asteroids and comets)
a system
includes
the moon, the sun, eight other planets and their moons, and smaller objects, such as asteroids and comets