The process of releasing gases from a planetary interior, usually through volcanic eruptions is called    __________________.    

What are the basic differences between terrestrial and jovian planets? Which planets fall into each group? 

The objects in our solar system called _______________ planets are giant gaseous planets similar in overall composition to Jupiter.   

 The __________   ____________ (two words) began when Copernicus used the writings of the Greek philosopher Aristarchus concerning a sun-centered theory because he appreciated its simplicity in its design.

In winter, Earth’s axis points toward the star Polaris. In spring: 

What are the two key properties of a telescope, and why is each important? Also distinguish between refracting and reflecting telescopes.

According to Kepler’s third law: 

What was the Copernican revolution, and how did it change the human view of the universe?

The Northern Hemisphere’s Winter season begins when the sun is at winter ___________________.

Briefly describe the Moon’s cycle of phases. Can you ever see a full moon at noon? Explain.