Elements and Extremes

Across

1. Without any limit or stop

3. Power source needed to do work

5. Untamed and wild like a stray animal

6. Line where earth and sky meet

7. Turning point or dividing line in geography

10. Salt formed with sulfuric acid

12. Release of gas or light energy

13. Soft mineral used in plaster and drywall

14. Yellow element known for its distinct smell

Down

2. Lead ore mineral often found in veins

4. Preservative salt found in cured meats

8. Gemstone often found in green hues

9. Empty and barren lacking life

11. Melt frozen food before cooking