Moon Phases and Eclipses Crossword Puzzle

About the Moon Phases and Eclipses Crossword Puzzle

This puzzle covers the Moon’s phases and the geometry of solar and lunar eclipses. Look for terms such as Crescent, Gibbous, Umbra, Penumbra, and Totality, along with names for orbital positions and observing events. It suits students studying astronomy, skywatchers, and anyone curious about why the Moon appears to change shape or sometimes disappears in Earth’s shadow.

This crossword draws on 40 clues about Moon Phases and Eclipses. Each grid uses a different handful and fits them together a new way, so press New puzzle for another whenever you finish. The answers are in the answer key when you print, and behind the Reveal button when you play.

Sample clues

• •Straight arrangement of celestial bodies (9 letters)
• •Apparent close pairing of celestial bodies (11 letters)
• •Celestial event in which one body blocks another (7 letters)
• •Tilt of an orbital plane relative to a reference (11 letters)
• •Disappearance of the lunar disk below the horizon (7 letters)
• •Incomplete, as an obscuration (7 letters)
• •Tapered dark region behind an opaque body (10 letters)
• •Boundary between the lit and unlit portions of a disk (10 letters)

Teaching this topic or planning a party? Make your own crossword with your own words and clues.