Across
- 3. Makes up around 21% of the Earth's atmosphere.
- 4. A bright yellow element, known in the Bible as "brimstone."
- 6. This element does not oxidize
- 8. The most reflective metal.
- 10. Was the first metal to be worked by man, along with gold and meteoritic iron.
- 11. Has 92 protons and 92 electrons
- 12. It's Twice as Strong as Aluminum.
- 14. The thirteenth most abundant element in the earth's crust
- 16. Name comes from the Latin word carbo, which means "coal."
- 17. Symbol is Fe.
- 18. Atomic number: 31.
- 20. Is the third most abundant element in the Earth's oceans.
Down
- 1. The second lightest (least dense) metal after lithium.
- 2. The only element that can exist without neurons.
- 5. Comes from the Spanish word, platina, which means “little silver”.
- 7. Has the smallest temperature range
- 9. Named after Albert Einstein
- 13. Keeps food fresh.
- 15. Named after the Greek word nitron, for "native soda," and genes for "forming."
- 19. The most abundant noble gas
