Earth Science Ch 22 The Sun, Moon, and Earth System

Astronomers believe that sunspots form when

An astronomical unit (AU) is defined as the distance between

A large, dark area on the surface of the moon is called

A depresson on the surface of the moon usually surrounded by circular walls is called a

The outer region of the sun's atmosphere

The region within the sun where energy travels primarily as electromagnetic waves is called

How many times does the moon rotate during one revolution around the earth?

A total solar eclipse is usually shorter than a total lunar eclipse.

Which pase of the moon does this image show?

The visible surface of the sun is called

The solar wind is just a continuation of the sun's atmosphere

The sun is composed mostly of

Most of the radiated energy from the sun travels in the form of high-energy protons and neutrons

The moon has a very thin atmosphere because it

Lunar mountains appear to be

The moon has a nearly perfect spherical shape likely because

In what lunar phase must the moon be during a total solar eclipse?

The apparent path that the sun follows through the stars as seen from Earth's perspective is called

Which of the following statements about the sun's electromagenetic energy is NOT correct

Severe solar storms that can disrupt telecommunications on Earth are called

Compared with the earth, the average density of the moon is

We call the 365 named days from January 1st to December 31st a(an)

Day, month, and year are all defned according to the motions of the sun, moon, and earth.

The lunar seas contain the largest masses of frozen water anywhere in the solar system outside of Earth.

Gases in the moon's very thin atmosphere come mostly from its interior.

Earth tides are the changes of local ocean height one or more times a day at a given location.

Some rilles may be cracks in the moon's crust that formed when it cooled and shrank.

Materials blasted out of a crater during a meteroite impact are

Which effect is NOT produced by tidal forces between the earth and the moon?

The sun is located far from the center of the Milky Way.

How does the moon's surface gravity compare with Earth's?

A solar flare is a glowing sheet of colored light above the earth's North and South Pole