Across
- 1. property A characteristic that describes how a substance behaves during a chemical reaction.
- 4. Metals that do not contain iron.
- 6. reaction A process where substances change into new substances.
- 7. How much mass is packed into a given volume.
- 9. bond A bond where atoms share electrons.
- 11. The ability of a material to attract or repel other magnets.
- 12. A pure substance made of only one kind of atom.
- 16. A lightweight, silvery metal that resists corrosion.
- 17. A unit that measures electrical potential or “pushing force” in a circuit.
- 19. To heat a metal and let it cool slowly to make it softer and easier to shape.
- 22. A substance that conducts electricity when dissolved in water.
- 25. reaction When two different metals touch in the presence of an electrolyte and one corrodes faster.
- 26. An alloy of iron and carbon.
- 27. replacement reaction A reaction where one element replaces another in a compound.
- 31. A chemical reaction where a material combines with oxygen.
- 32. How much a material opposes the flow of electricity.
- 34. property A characteristic that can be observed without changing the substance (color, density, melting point).
- 38. A mixture of two or more metals (or a metal and another element).
- 39. The gradual destruction of a material (usually metal) by chemical reactions, often rusting.
- 40. How easily a material can be hammered or shaped without breaking.
- 42. Reheating hardened steel to reduce brittleness and improve toughness.
- 44. Able to return to its original shape after being stretched or bent.
Down
- 2. A light metal that burns easily with a bright white flame.
- 3. A strong, common metal used to make steel.
- 5. The negative electrode in an electrical or chemical cell.
- 6. A reddish metal that conducts electricity very well.
- 7. How easily a material can be drawn into wires.
- 8. expansion How materials expand when heated.
- 10. Containing iron.
- 11. Two or more atoms bonded together.
- 13. The positive electrode in an electrical or chemical cell.
- 14. steel Steel with chromium that resists rusting.
- 15. strength How much stretching force a material can withstand before breaking.
- 18. A material’s resistance to being scratched or dented.
- 20. A metal often used to coat steel to protect it from rusting.
- 21. property How a material behaves under forces (hardness, strength, ductility, etc.).
- 23. conductivity How well a material transfers heat.
- 24. Heating and cooling a metal to make it stronger and harder.
- 28. An atom or molecule with an electrical charge.
- 29. carbon steel Steel with little carbon, making it softer, more ductile, and easier to shape.
- 30. carbon steel Steel with a high amount of carbon, making it strong and hard but less ductile.
- 33. How well a material carries heat or electricity.
- 35. The smallest unit of an element that still has that element’s properties.
- 36. How easily a material breaks instead of bending.
- 37. The amount of space an object occupies.
- 41. A shiny, conductive material that can be shaped and formed easily.
- 43. The amount of matter in an object.
- 45. A substance made of two or more elements chemically joined together.