Across
- 4. What coats the telescope and allows it, Hubble 2.0, to detect galaxies and reflects infrared light?
- 6. what is the largest group on the periodic table?
- 8. Elements heavier than iron are believed to come from the collision of two _____ stars
- 9. What is made of pure carbon and is the strongest material ever found?
- 10. What metal was used to make stronger, more durable, stiffer weapons which greatly affected warfare?
- 12. What object is really flexible, changes shape when done, becomes solid, and has a lot of strength?
- 13. Iron is one of the strongest ______
- 14. What consists of atoms, nucleus, neutrons, protons, and electrons?
- 17. What is a huge problem that the world deals with, but the solution is to create steel from it?
- 18. What does the combination of iron and carbon make?
- 19. what is the soft, white/gray metal, that when mixed with steel it creates a stronger, lighter material?
- 20. Within the intense heat and pressure the elements begin to take shape. What is the process of the elements bonding together called?
Down
- 1. What is gold resistant to?
- 2. What element has 13 electrons/protons, 14 neutrons, vastly light, and can be modified?
- 3. What is the explosion of the stars called?
- 5. What element is embedded in malachite, used to make tools, and has 29 neutrons/protons?
- 7. What element has 26 electron/protons, 30 neutrons, and needs extremely hot fire to separate from stone? What element has 26 electron/protons, 30 neutrons, and needs extremely hot fire to separate from stone?
- 11. What element does gold not bond with to prevent tarnishing/rusting?
- 15. The metals ended the stone age and began modern life. The metals are copper, bronze, iron and _____
- 16. Metals have the ability to conduct