Sun-Earth-Moon System Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 15 clues. Answers range from 3 to 8 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

reached when the sun's position is directly over earth's equator
the universe is made of _____
earth's only natural satellite
calendar adds an extra day
dark-colored,relatively flat regions of the moon
the sun is just an average-sized _____
the number of the phases of the moon
one million earth's can fit inside the _____
_____ and night are caused by earth's rotation on its axis
depends on gravity
takes almost a full ______ to orbit earth
takes earth a ______to orbit the sun one time
moon _____ around the earth
earth _____ around the sun
the shape of the sun is a almost perfect _____