GOLD

Contents

• Introduction
• History
• Uses
• Physical Properties
• Source
• Thanks

Introduction

HISTORY

• Jewellery
• Currency
• Trading
• GOLD RUSH

USES

• Jewellery
• Investing
• Electronics&computers
• Dentistry and medicine
• Aerospace
• Medals and awards

PHYSICAL PROPERTIES

• Element name: Au
• Melting Point:1064 C
• Boiling point:2856 c
• Atomic number: 79
• Atomic weight:196.966
• Pure gold: 24 karat gold
• Fact: Gold is used in window glass and astronaut helmets to reflect infrared rays while allowing sunlight to pass through, and at the same time keeping it cool.

FUN FACTS

SOURCES

• http://quatr.us/science/mining/gold.htm
• http://www.sciencekids.co.nz/sciencefacts/metals/gold.html
• http://www.sbcgold.com/blog/top-6-common-uses-for-gold/
• http://www.ducksters.com/science/chemistry/gold.php

THANK YOU FOR LISTENING