| Elements | Cities |
|---|
| Sodium, Polonium, Lithium | |
| Phosphorus, Argon, Iodine, Sulfur | |
| Calcium, Radium, Carbon, Arsenic | |
| Boron, Aluminum, Titanium, Molybdenum, Rhenium | |
| Potassium, Argon, Actinium, Hydrogen, Iodine | |
| Sodium, Iridium, Oxygen, Bismuth | |
| Calcium, Lithium | |
| Calcium, Niobium, Erbium, Radium | |
| Rhenium, Carbon, Iodine, Iron | |
| Lithium, Antimony, Oxygen, Nitrogen | |
| Sulfur, Thallium, Oxygen, Uranium, Iodine, Sulfur | |
| Carbon, Indium, Carbon, Indium, Sodium, Titanium | |
| Barium, Potassium, Uranium | |
| Astatine, Lanthanum, Nitrogen, Tantalum | |
| Arsenic, Uranium, Nitrogen, Carbon, Iodine, Oxygen, Nitrogen | |
| Molybdenum, Scandium, Oxygen, Tungsten | |
| Boron, Oxygen, Iodine, Selenium | |
| Neon, Tungsten, Argon, Potassium | |
| Bromine, Iodine, Sulfur, Barium, Neon | |
| | Elements | Cities |
|---|
| Hydrogen, Americium, Boron, Uranium, Roentgenium | |
| Gold, Carbon, Potassium, Lanthanum, Neodymium | |
| Actinium, Carbon, Radium | |
| Tungsten, Iodine, Carbon, Hydrogen, Iodine, Tantalum | |
| Phosphorus, Erbium, Thorium | |
| Silicon, Nitrogen, Gallium, Polonium, Rhenium | |
| Carbon, Hydrogen, Iodine, Carbon, Silver, Oxygen | |
| Calcium, Nitrogen, Copper, Nitrogen | |
| Carbon, Argon, Tantalum, Germanium, Sodium | |
| Boron, Erbium, Lithium, Nitrogen | |
| Astatine, Helium, Nitrogen, Sulfur | |
| Radium, Boron, Astatine | |
| Bismuth, Sulfur, Sulfur, Gold | |
| Rhenium, Nobelium | |
| Francium, Einsteinium, Nobelium | |
| Calcium, Iridium, Oxygen | |
| Tellurium, Hydrogen, Radium, Nitrogen | |
| Gold, Sulfur, Titanium, Nitrogen | |
| Potassium, Americium, Protactinium, Lanthanum | |
|
The Nine Planets 
Digits of Pi 
Multiplication Table
