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End of Unit Test Revision – Year 8 EARTH SCIENCE Mining Methods – Unscramble the five different types of Mining to find a hidden 5 letter word.

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Valuable  Resources  and  Exploration

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Valuable Resources and Exploration – Using the 9.1 Glossary below, complete the crossword Across 6. How shiny a mineral is 7. Geologists can make these using images from satellites to record places where minerals might be 8. This can be attached to a plane to detect different strengths of gravity (p327) 9. One precious metal that is found as a pure element when in mineral form 11. The layer of the Earth that minerals are found in 13. The colour left behind when you scratch a mineral on a white tile 14. The colour of the streak from Black Haematite (p318) 15. To test for this, you would scratch a mineral with a diamond. Down 1. Minerals are elements (like Gold) or combinations of elements called chemical________? 2. What does EM stand for, when in the context of EM surveys? 3. The type of survey where samples (cores) are taken then minerals measured (p329) 4. Something in space that can record infrared images of Earth 5. The name given to oil/natural gas (hint: what goes into a car) 7. Minerals containing iron, nickel or cobalt can be detected using this (p326) 10. Minerals that are ____ can cause variations on gravitational pull (p327) 11. A valuable resource that is not a mineral, but is used to make electricity 12. The name for a rock that contains minerals 16. If there was a magnetic mineral you would see this in the magnetic field image (P327) 17. The type of survey where you send shockwaves underground and measure what comes back

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Circle the correct answer!

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1.

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5.

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Coal-Generated Electricity – WESTERN AUSTRALIA

Proposed Muja South Mine (Griffin Coal)

Location: South and east of Muja Mine (Muja Mine is 18 kilometres south east of Collie).

Size: ~140 million tons of recoverable resource.

Year mining is expected to commence: Estimated at 2012, to be confirmed pending environmental approvals.

Type of mining: Open cut.

Muja South is a proposed new mine site immediately south and east of the existing Muja Mine, intended to form the next phase in the orderly development of Griffin Coal's Collie coal deposits.

Project Update:

The project is being readied for environmental assessment, beginning with referral to the Western Australian Environmental Protection Authority under Section 38 of the Environmental Protection Act 1986 to set the appropriate level of assessment. The assessment phase will include an extensive consultation program designed to identify and define any community and regulatory concerns. This process is expected to take between 18 and 24 months.

The first step in creating an open-cut mine is DEFORESTATION (removing vegetation). What things could scientists measure before and after the removal of vegetation, to see how it has affected the natural environment in Collie?