Across
- 1. a crater with central peaks and ejecta thrown out in long rays
- 3. the pulverized surface material of the Moon; also known as lunar soil
- 11. a crater from a large impact that released magma from beneath the surface
- 12. the shape of the Moon just after and just before the new Moon phase
- 14. the vertical distance or height above sea level
- 15. light-colored areas on the moon with lots of rough mountains and craters
- 17. the angular distance north or south from Earth’s equator
- 20. the phase of the Moon that occurs when the Moon is opposite the Sun as seen from Earth
- 22. spinning on an axis
- 23. a Moon shape that is larger than a first or third quarter Moon but smaller than a full Moon
- 24. the collection of objects, distances, and directions used to tell the location of an object
- 26. the phase that occurs halfway between the new and full Moon
- 28. small, bowl-shaped craters with a fairly uniform blanket of ejecta distributed around the rim
- 30. the angle at which light passes through the atmosphere; measured from Earth’s surface
- 32. the distance measured on Earth's surface east or west of the prime meridian
- 35. an imaginary axle that a planet spins on
- 36. the imaginary line where the sky meets Earth or the ocean
- 37. when the Moon passes exactly between Earth and the Sun
- 39. round structures of various sizes with various details created by an impact
- 41. the action of one object hitting another; to strike an object with force
- 42. the straight, unimpeded path taken by light from an object to an eye
Down
- 2. the phase that occurs halfway between the full and new Moon
- 4. a piece of a meteoroid that hits the ground
- 5. when Earth is exactly between the Moon and the Sun, and the Moon passes through Earth’s
- 6. a chunk of ice, dust, and rock material a few kilometers in size
- 7. the phase of the Moon that occurs when the Moon is in the direction of the Sun from Earth
- 8. the reference star pointed to by Earth’s North Pole
- 9. the position from which a visual observation is made
- 10. traveling around an object
- 13. a day of the year when Earth’s North Pole is leaning either toward the Sun or away from the Sun
- 16. a small or medium-size piece of rock or metal from space
- 18. the material displaced from the land when a crater is formed
- 19. the circle around Earth or a celestial object that is everywhere the same distance from the poles
- 21. the path and length of time one object takes to travel around another object
- 25. white lines that extend in all directions from some craters
- 27. when the moon is getting smaller
- 29. a day of the year when the Sun’s rays shine straight down on the equator
- 31. the way a light beam covers a larger area when it hits a surface at an angle
- 33. a structure on the Moon's surface that looks like a canyon or streambed
- 34. when the moon is getting bigger
- 38. the dark large areas that are fairly smooth on the surface of the moon
- 40. the distance above Earth’s surface