Transcript Where do diamonds come from?

Where do diamonds
come from?
Answer the question in
your books.
Diamonds: Friend or Foe?
Where do diamonds
come from?
Where do diamonds come from?
Aims:
Investigate the journey of a
diamond from its source to
destination.
Diamonds: Friend or Foe?
Draw the table below in your book
What I know
What I’d like to
know
What I have
found out
Chase the answer
To find out more about diamonds we will
be chasing the answer.
Everybody will need an information
sheet.
Chase the answer
1. Read through the information I have given
you.
2. Underline any words or phrases you don’t
understand.
3. We will go through these as a group.
Chase the answer
RULES:
1. Everyone in the group must be involved and
respected.
2. Everyone must write the answer down in
their books in full sentences before collecting
the next question.
3. No running or pushing
4. Noise levels are 'group-work' noise levels
Where are diamonds created? (1)
Diamonds are created deep under the
surface of the Earth in the mantle.
This happens around 140-190km down
where the heat and pressure are high
enough.
How are diamonds transported to the
surface of the Earth? (2)
Diamonds are transported to the Earth’s
surface by volcanic action under continental
crust in kimberlite pipes.
Where are diamonds found? (3)
Diamonds are
found in the
earths surface in
deposits of
kimberlite (rock)
known as
kimberlite pipes.
What type of rock are diamonds found
in? (4)
Diamonds can be mined direct from kimberlite pipes
called open pit mines.
Diamonds can also be found on flood plains where they
have been eroded from the kimberlite by rivers.
What are diamonds used for? (5)
Diamonds are used as gemstones in jewellery
due to their light reflecting properties and
beauty.
Diamonds are also used in industry for their hard
properties in processes such as cutting of other
materials.
Which step is missing?
We have found out how diamonds are
formed, mined and used but what is the
missing link from our story?
Discuss in your pairs where you think the
diamonds might be transported to and
traded/sold?
Transporting, Cutting,
Polishing and Trading
When diamonds are mined they must also be
prepared for use, this preparation is called
cutting and polishing.
Following cutting and polishing the diamonds
are transported to somewhere they can be
sold or traded.
Where are diamonds traded?
Antwerp in Belgium has historically been
extremely important to the diamond industry.
Even though this industry has recently decreased
70% of the world’s diamonds still pass through
Antwerp, Belgium to be traded (sold).
Many people even sent their diamonds to
Antwerp to be safeguarded during WW2.
Mark on the following countries to
show the journey of a diamond
Mined- Sierra Leone, Democratic Republic of
Congo, Australia, Russia and USA.
Cut and polished- Belgium, India and Israel.
Traded- Antwerp, Belgium.
Sold- USA, UK, Australia, New Zealand and Canada.
Where do diamonds come from?
Create a cartoon strip or
storyboard to explain where
diamonds come from.
Where do diamonds come from?
1. Where diamonds are formed.
2. How diamonds are transported to the Earth’s
surface.
3. How diamonds are mined.
4. Cutting and polishing of diamonds.
5. Where diamonds are traded.
6. Two uses of diamonds.
Where do diamonds
come from?
Answer the question in
your books and compare it
to your first answer.
Where do diamonds come from?
Aims:
• Know where diamonds are formed and why.
• Explain the journey from source to use.