Solar Eclipses

2. Occurs about every eighteen months when the dark silhouette of the Moon completely obscures the bright light of the Sun's surface, allowing the much fainter solar corona to be visible.
3. During any one eclipse, totality occurs at best only in a narrow track on the surface of Earth. This narrow track is called the ___.
4. The outermost part of the Sun's atmosphere which is usually hidden by the bright light of the Sun's surface.
6. When an eclipse shifts between a totality and annularity; rarest type of eclipse.
7. Occurs once every one or two years when the Sun and Moon are exactly in line with the Earth, but the apparent size of the Moon is smaller than that of the Sun.
9. Special glasses that block out the most dangerous parts of the solar spectrum for human eyes.

1. When the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of the Earth.
5. The Sun appears as a very bright ring during an annual eclipse. This ring is called ___.
8. Occurs about twice a year, when the Sun and Moon are not exactly in line with the Earth and the Moon only partially obscures the Sun; barely noticeable.