Across
- 3. Used as an antiseptic
- 5. Found in dairy products like milk
- 8. Important component of computer chips
- 11. Type of acid found in stomach
- 14. Composes 46% of Earth's crust
- 16. Commonly known as table salt
- 17. Used to power nuclear reactors
- 18. Used in plumbing pipes and pennies
Down
- 1. Found in drain cleaner
- 2. Heavy metal no longer used in pencils
- 4. Found in smartphone batteries
- 6. Exhaled after breathing
- 7. Found in glass cleaner like Windex
- 9. Major component of steel
- 10. Used in artificial joints and golf clubs
- 12. Table sugar
- 13. Sugar produced by photosyntheses
- 15. Found in signs, glows when excited