| A | B |
|---|
| star | a massive ball of hot gases that produces its own light |
| axis | an imaginary line around which Earth spins |
| rotation | one complete spin on an axis |
| revolution | one complete trip around the sun |
| phase | the way the Moon looks because of how much of it we can see on Earth |
| lunar eclipse | Earth's shadow moving across the Moon |
| telescope | a tool that magnifies objects that are far away |
| constellation | a group of stars that make a pattern or shape |
