Across
3. this element is commonly found in fertilizer
5. produces a deep blue dye for glass, ceramics, and paints, small amounts in humans
8. fruits and vegetables are a good source of this element
9. second most abundant element in Earth's atmosphere
10. most abundant element in Earth's atmosphere
11. graphite and diamonds are made from this element
15. this element is very common in the universe, but not common on Earth
16. this element is the second most abundant in Earth's crust
18. this element's name comes from selene, the Greek word for Moon
19. second element on the periodic table, second most abundant element in the universe
Down
1. this element has a bad smell and can be found in volcanic vents
2. this element is found in pennies and is in very small amounts in humans
4. the first element on the periodic table and most abundant element in the universe
5. third most abundant in Earth's oceans, is also in table salt, and is used to keep pools clean
6. this element is abundant in the universe and in Earth's core
7. brass is made from copper and this element, and it is in very small amounts in humans
12. this element is found in very small amounts in sea water and is used to keep pools clean
13. this element has a bluish-black color and is used as a disinfectant
14. this element is found in our bones and teeth
16. this element is the fourth most abundant in Earth's crust and is also found in table salt
17. this element forms most of Earth's inner and outer cores and in our blood
