Exam 21: The Moon and Mercury

In larger craters, the deformation of the rock can form one or more concentric inner rings with the outer rim, producing _____.

Which of the following is the oldest geological feature of the Moon?

What method was used to determine the absolute ages of the lunar rock samples from the Apollo missions?

Explain Mercury's peculiar rotation and revolution. How is it different than most other planets?

Mercury's _______________ are marked by meteorite craters less than 15 km in diameter, in addition to secondary craters.

Briefly describe Mercury's geological history through the four steps of planetary development.

Debris blasted from the impact of a crater is called ____.

The relationship between the rotation of Mercury and its revolution is referred as a(n) _______________.

What is the dominant feature of the lunar surface?

The lunar _______________ are saturated with craters.

Mercury is more than 60 percent denser than the Moon.

What does "maria" mean?

Which is a unique geological feature found on Mercury's surface?

Where did the Apollo 15 lunar module land and sample?

Explain the three different hypotheses for the origin of the Moon and how evidence from the Apollo lunar rocks persuaded scientists to develop a new hypothesis.

Briefly compare and contrast the characteristics of the Moon and Mercury.

Most of the craters on the Moon are relatively young.

Which was the source of lava during the flooding stage of the Moon's development?

How were the lunar maria formed?