Descriptive Astronomy 101
Venus Study Guide


After the "Venus" lecture and readings you should be able to answer and discuss the following questions.

Why is Venus often referred to as Earth's Twin?

How far away from the Sun is Venus, when compared to the Earth's distance from the Sun?

What is the relationship between the revolution and rotation?

Based on the best information available, what is the interior structure of Venus?

Where and how is a planet's magnetic field generated?

Why does Venus not have a strong magnetic field?

What is the composition of the atmosphere of Venus?

How does it differ from the Earth's atmosphere?

Why does Venus have so much carbon dioxide in its atmosphere, while the Earth has so little?

Why is carbon dioxide in the atmosphere important?

What is the Greenhouse Effect?

What has been the affect of the Greenhouse Effect on Venus?

What has been the affect of the Greenhouse Effect on Earth?

Why is Venus so hot when compared to the Earth?

Describe the morphology of craters on Venus.

What is unusual about the appearance of the impact ejecta for craters on Venus?

Why do they have this sort of appearance?

What are the two oddities of craters on Venus when compared to other planets?

How can these two oddities be explained?

How much of the surface of Venus is covered by volcanic features?

How many volcanoes are there on the surface?

What are the major types of volcanoes and volcanic features that are found on the surface of Venus and what are their characteristics?

What are the major characteristics of the crust?

Why do these characteristics differ from the crust of the Earth?

Why does it appear there is no plate tectonic activity on Venus, similar to that found on Earth?

List and describe the major tectonic features seen in the crust of Venus.

What is the driving mechanism for tectonic activity on Venus?

What do the views from the Venera probes tell us about the surface?

What are the erosive processes that are operating on the surface of Venus?

Describe evidence for, and the theory of planetary resufacing as it has been applied to Venus.