| A | B |
|---|
| Galileo | Astronomer born in 1564 |
| monastery | where Galileo attended school |
| Pisa | site of Galileo's Lamp |
| clock | designed with a pendulum |
| Leaning Tower of Pisa | site of some of Galileo's experiments |
| Ptolemy | Roman astronomer |
| Ptolemaic Theory | stated the sun moved around the earth |
| Copernican Theory | stated the earth moved around the sun |
| Medici | patron family of Galileo |
| Io, Europa, Ganymede, and Callisto | moons of Jupiter |
| heliocentric | having the sun as the center |
| geocentric | relating to the earth as the center |
| cosmos | the orderly universe |
| dialogue | a conversation between two or more persons |
| inquisition | a severe questioning |
| Vencenzio | Galileo's father |
| house | where Galileo was imprisoned |
| Virginia and Livia | Galileo's daughters |
| with respect | how Galileo treated people |
| David Scott | astronaut |
