(surface) Gold mining underground
Transcription
(surface) Gold mining underground
Gold mining equipment (surface) PLEASE LABEL THE PICTURES BELOW: Left: _______________ ___________________ Gold mining underground PLEASE WRITE SHORT ANSWERS TO THE QUESTIONS BELOW: How many registered mine shafts were sunk in the main Bendigo area during the gold rush years? What is used to transport rock underground? __________________________________ Right: _____________ ___________________ __________________________________ How far down did the deepest mine shaft in Bendigo get sunk (in metres)? Name the three categories of quartz reefs that are found under Bendigo. 1. _________________________________ Left: _______________ ___________________ Right: ______________ ___________________ __________________________________ 2. _________________________________ Name two main sources of light for miners underground in the early years before electric lights were introduced. 1. _________________________________ 3. _________________________________ What was used as an indicator that the rock in a tunnel was getting loose? 2. _________________________________ Left: _______________ ___________________ __________________________________ What powers the rock drills? __________________________________ __________________________________ Right: ______________ ___________________ What was used to stop the dangerous dust that the early rock drills caused? What was a miner’s preferred lunch underground? Why? __________________________________ Left: _______________ ___________________ Right: ______________ __________________________________ __________________________________ Why were holes put into rock? __________________________________ __________________________________ __________________________________ ___________________ __________________________________ Gold trivia PLEASE CIRCLE THE CORRECT ANSWERS BELOW: How many grams are there in 1 Troy ounce of gold (gold is measured in Troy ounces)? 25g 35g 31.1g 28.45g Which symbol represents Gold on the Periodic Table? Fe Ag Au Ga How much mined gold is estimated to be used for jewellery? 50% 35% 80% 25% What makes gold unique from other metals? (Could be more than one answer) a. It is the only metal found in quartz b. It is the only yellow metal c. It is the only metal that doesn’t corrode d. It is the only Noble metal If you were to pound 1 gram of gold as flat as it could go, how big would the resultant gold sheet be? 25cm2 50cm2 2 75cm 1m2 If you wanted to make “pink gold”, with which other metal would you mix gold? Brass Silver Copper Alluminum Although rare, there are a few chemicals that can dissolve gold. They are (Could be more than one answer ... - Sulphuric Acid - Aqua Regis - Mercury - Some cyanide compounds ON-SITE ACTIVITY SHEET If you had a block of gold that was 30cm3, (the length of a ruler), approximately how heavy would it be? 1000kg 150kg 330kg 500kg What was the size of the biggest gold nugget ever found? 28kg 72kg 46kg 115kg What are some everyday items that contain gold? (Could be more than one answer) Computers Telephones Medical treatments Toothpaste Welcome to Central Deborah Gold Mine! You are about to venture underground and learn more about what it was like to be a miner back in the early 1900s. It was a tough job with many dangers. Today mining is very different and much safer. During your tour, try and fill in this activity sheet, then check with your teacher afterwards to see if you get the answers right.