| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Mineral water from natural springs usually has a high level of carbonate of this chemical element | calcium | $400 | DJ | WATER SCIENCE | 2015-07-24 | #7120 | |
| A basic component of bones, this metallic element is also used to make plaster, alloys & cement | calcium | $400 | DJ | SCIENCE "C" STUFF | 2012-11-02 | #6470 | |
| This element, important for bone strength, is the 3rd most abundant metal in the Earth's crust | calcium | $200 | J | PHYSICAL SCIENCE | 1991-09-11 | #1613 |