Both directions use the same worksheet. The shaded box in each answer is the letter to copy into the matching vault slot.
Name: ______________________ Date: ____________
Solve a clue and copy the shaded letter from your answer into the matching vault slot. Solve the clues in any order. Spaces don't count as letters. Open the vault with as few clues as you can. Solve a clue, copy its letter, and try the vault whenever you think you know the word.
| Vault slot | Clue | Answer | Take letter |
|---|---|---|---|
| 1 | A common white or colorless mineral used to make cements and plasters |
|
6th |
| 2 | A sedimentary rock consisting of sand consolidated with some cement |
|
7th |
| 3 | A hard glossy mineral consisting of silicon dioxide in crystal form |
|
2nd |
| 4 | A sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals |
|
8th |
| 5 | Thin layers of rock used for roofing |
|
4th |
| 6 | Any of a group of hard crystalline minerals that consist of aluminum silicates of potassium |
|
7th |
| 7 | Produced by the action of fire or intense heat |
|
1st |
| 8 | Plutonic igneous rock having visibly crystalline texture |
|
4th |