| Answer | Crossword Clue |
|---|---|
| ETA | Letter before theta |
| IOTA | Letter after theta |
| IOTA | Letter next to theta |
| IOTA | Greek letter after theta |
| ETA | Letter next to theta |
| ETA | Letter between zeta and theta |
| IOTA | Letter between theta and kappa |
| ETA | Greek letter between zeta and theta |
| RHO | Letter used with theta and phi to represent spherical coordinates |
