Unit C Vocabulary

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Across
  1. 2. Moon phase that occurs when the Moon is between Earth and the Sun, at which point the Moon cannot be seen because its lighted half is facing the Sun and its dark side faces Earth.
  2. 5. The part of a shadow surrounding the darkest part
  3. 10. The phase of the moon when it is one-quarter of the way through its orbit, and we see half of the moon lighted
  4. 13. the different appearances of the moon from Earth throughout the month
  5. 14. All of the frequencies or wavelengths of electromagnetic radiation
  6. 15. the darkest part of a shadow during an eclipse.
  7. 16. the transparent structure behind the pupil that changes shape to help focus images on the retina
  8. 17. an eclipse in which the sun is obscured by the moon.
  9. 20. The movement of an object around another object
  10. 21. Occurs when an object causes a wave to change direction and bend around it
  11. 22. The bending of a wave as it passes at an angle from one medium to another
  12. 24. The two days of the year on which neither hemisphere is tilted toward or away from the sun
Down
  1. 1. Neap tides occur when the moon lies at right angles to a line drawn between the Sun and the Earth.
  2. 3. The phase of the moon when it is three-quarters of the way through its orbit, and we see half of the moon lighted
  3. 4. Light is a transverse, electromagnetic wave that can be seen by the typical human. The wave nature of light was first illustrated through experiments on diffraction and interference.
  4. 6. The partial or total blocking of one object in space by another
  5. 7. the phase of the moon in which we see the entire moon lighted, and it appears bright and round
  6. 8. Spring tides occur when the Earth, Sun, and Moon are lined up.
  7. 9. either of the two times in the year, the summer solstice and the winter solstice, when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days.
  8. 11. an eclipse in which the moon appears darkened as it passes into the earth's shadow.
  9. 12. electromagnetic waves that you can see
  10. 18. The path an object follows as it moves around another object
  11. 19. CIRCULAR MOVEMENT AROUND AN AXIS
  12. 23. an imaginary line about which a body rotates.