2. Different types of Brass Must contain varying amounts of copper and zinc Copper typically in highest quantity

3. Properties of brass include: ▫ Characteristic gold color ▫ Malleable (hammered into sheets) ▫ Resistant to corrosion ▫ Acoustic properties (musical instruments) ▫ Nonmagnetic

4. Different elements added to change properties of brass ▫ Tin or aluminum ( harder and corrosion resistant) ▫ Combinations of aluminum, iron, silicon, and manganese for wear and tear resistance

5. Very difficult to make due to melting point of zinc Copper was ground and melted with ores containing zinc Used in: ▫ Jewelry ▫ Helmets ▫ Coins ▫ Church decorations and mirrors ▫ Clocks ▫ Navigational aids

6. Brazen bull was torture device that took advantage of heat conducting properties of brass Set of tubes and pipes could be used to make screams seem like cow sounds

8. Easily manufactured Fittings (bolts and nuts) Fixtures (doorknobs, locks) ▫ Doorknobs in hospitals because bacteria die within eight hours

9. Rifle cartridges Musical instruments