Across
- 2. A base element that makes up the primary substance in steel and cast iron
- 3. Containing or relating to iron
- 7. A container used to store and transport gas
- 8. A substance that facilitates soldering, brazing and welding by chemically cleaning the metals to be joined
- 9. A gas that has been heated to the point where it will conduct electricity
- 12. A metal made by mixing two or more metals
- 13. A device used to heat metal for forming and bending
- 14. Energy from heat or light that you cannot see
- 15. A tool or device used to hold pieces in place for welding
Down
- 1. A very hard, heavy, steel-grey-to-white transition metal; W in the periodic table
- 4. Pure oxygen combined with gas
- 5. To join two pieces of metal together permanently by melting the parts that touch
- 6. To cause fresh air to enter and move around an enclosed space
- 10. A material such as sand, silicon or crushed stone used for surface cleaning
- 11. The most common noble gas on Earth and represented by Ar in the periodic table