(surface) Gold mining underground

Transcription

(surface) Gold mining underground
Gold mining equipment (surface)
PLEASE LABEL THE PICTURES BELOW:
Left: _______________
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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?
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Right: _____________
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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. _________________________________
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Right: ______________
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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. _________________________________
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What powers the rock drills?
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Right: ______________
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What was used to stop the dangerous
dust that the early rock drills caused?
What was a miner’s preferred lunch
underground? Why?
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Right: ______________
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Why were holes put into rock?
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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.