Final Exam

There are ________ planets in the Solar System.

Put the planets in order!

Put the planets in order!

Put our cosmic address in order!

Our galaxy and the few dozen nearest galaxies are known as the

When a change occurs on the surface of the Sun, how long does it take before astronomers on Earth can see the change?

A light-year is a unit commonly used in astronomy as a measure of

The first event in the history of the universe is called the

The apparent path of the Sun across the celestial sphere over the course of a year is called the

The point on the sky directly above an observer is called the