| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| To make soil less acidic acidic add this, also known as calcium carbonate | lime | $500 | J | GARDENING | 1989-03-15 | #1053 | |
| Acidic soils can be made more alkaline by adding, perhaps a "twist" of this calcium compound | lime | $200 | DJ | GARDENING | 1988-06-02 | #879 |