What is the proton-proton chain? Describe what it is and how it works.
Describe the formation of the solar system from the solar nebula.
Compare and contrast Jovian and terrestrial planets.
How are reflecting and refracting telescopes different? Describe how they work, what devices are used in them and which are used as professional telescopes today.
Describe several of the things that Galileo reports discovering in Sidereus Nuncius.
Can sound travel in space? Why or why not?
Can humans hear radio waves?
Explain why we experience seasons.
Explain what causes the phases of the Moon. Include a diagram showing the Earth and Sun with the Moon's position at each phase.