Exam 17: The Atmosphere

Because Jupiter's four large moons were discovered by Galileo, they are called ______________ moons.

The moons of Mars are believed to be captured ______________.

Charon is a moon of ______________ .

The full moon by definition occurs

When a meteor strikes Earth's surface, it is called a(n) ______________.

The bright side of the waxing crescent moon is toward the ______________.

On March 21, the Moon is in its first-quarter phase. An observer who sees this Moon on his or her meridian at this time

The diameter of the Moon is approximately

Long-period comets are believed to come from ______________.

The highest tides are called ______________ tides.

Which of the following is(are) believed to be material that never collected into a single planet?

Which of the Galilean moons has volcanic activity?

Sunlight reflected from interplanetary dust results in the appearance of ______________.

______________ is the largest known asteroid.

When the Moon appears on an observer's meridian at 4 A.M., the Moon is in the ______________ phase.

A meteor ______________ results when a large number of meteoroids enter Earth's atmosphere.

Looking at the Moon, the "horns" of a waning crescent moon point toward the ______________.

The central, completely dark portion of a shadow is call the ______________.

Which of the following moons has retrograde motion?

When the Moon appears on an observer's meridian at midnight, it is called a(n) ______________ moon.