Ch. 4 God's Great Universe Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 18 clues. Answers range from 4 to 16 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Venus and Mercury do not have these
a symmetrically shaped oval
the meaning of the word planet
discoverer of the law of universal gravitation
the time it takes for a comet to complete and orbit
a band of comet-like objects beyond Neptune
365 1/4 days
earth turns in 24 hours
phases of the moon reflecting the most sunlight
the distance between the earth and the sun
the two points inside an ellipse
a complete ellipse around the sun
believed the universe was earth-centered
nucleus, coma, and tail
the force of attraction between any two objects
believed the universe to be sun-centered
discovered the 3 laws of planetary motion
the smallest space debris