Unwrapping Our World Ccchs Yr 8 Test

30 Questions | Total Attempts: 141

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Unwrapping Our World Ccchs Yr 8 Test - Quiz

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Questions and Answers
  • 1. 
    The earths crust is also known as the:
    • A. 

      A. Hydrosphere

    • B. 

      B. Atmosphere

    • C. 

      C. Lithosphere

    • D. 

      D. Stratosphere

  • 2. 
    Sedimentary rocks are usually formed through the following process
    • A. 

      A. heat, pressure, transformation, infiltration

    • B. 

      B. erosion, transportation, deposition, cementation

    • C. 

      C. global warming and UV rays

    • D. 

      D. cooling magma

  • 3. 
    Ozone layer depletion is caused by chemicals including CFC's. Some of the major health problems include:
    • A. 

      A. Heart disease and high cholesterol levels

    • B. 

      B. Chronic Fatigue syndrome

    • C. 

      C. Lung cancer

    • D. 

      D. Skin cancer and eye problems

  • 4. 
    The greenhouse effect is a warming up of the earths atmosphere. Some of the main gases that contribute to the greenhouse effect include
    • A. 

      Carbon dioxide, methane and nitrous oxide

    • B. 

      Carbon monoxide, methane and CFC's

    • C. 

      Oxygen and ozone

    • D. 

      Nitrogen and Hydrogen

  • 5. 
    A persons' Carbon Footprint is defined as
    • A. 

      The size of their shoe

    • B. 

      The amount of CFC's a person produces

    • C. 

      The amount of greenhouse gases produced by a person

    • D. 

      The amount of carbon needed by a country

  • 6. 
    The Biosphere is
    • A. 

      A. The layer inhabited by living things

    • B. 

      B. The layer in the air just above the Lithosphere

    • C. 

      C. The layer of water surrounding the earth

    • D. 

      D. The area of earth where humans live

  • 7. 
    On the excursion to Bombo you counted the plants and animals found in the rock pools at the Boneyard. This is an example of studying the:
    • A. 

      A. Atmosphere

    • B. 

      B. Biosphere

    • C. 

      C. Ionosphere

    • D. 

      D. Stratosphere

  • 8. 
    Two examples of igneous rocks are
    • A. 

      A. Sandstone and Basalt

    • B. 

      B. Limestone and Sandstone

    • C. 

      C. Basalt and Obsidian

    • D. 

      D. Shale and Slate

  • 9. 
    Tides are mainly caused by:
    • A. 

      A. Wind and rain

    • B. 

      B. The earths gravity pulling on the moon

    • C. 

      C. The suns gravity pulling on the earth

    • D. 

      D. The moons gravity pulling on the earth

  • 10. 
    During stormy seas
    • A. 

      A. waves add to beaches and sand dunes by depositing sand

    • B. 

      B. there are more high tides and low tides

    • C. 

      C. waves erode beaches and sand dunes

    • D. 

      D. there is always a full moon

  • 11. 
    Longshore drift means
    • A. 

      A. sand gets transported down rivers to the ocean

    • B. 

      B. sand is constantly moving along beaches

    • C. 

      C. bird and fish habitats are depleted due to overfishing

    • D. 

      D. getting lost at sea without a paddle

  • 12. 
    Weathering is:
    • A. 

      A. sun, rain, snow and wind

    • B. 

      B. the process by which water moves fragments of rock and soil

    • C. 

      C. the breakdown of the materials of the earths crust

    • D. 

      D. whether it is raining or sunny

  • 13. 
    Erosion is
    • A. 

      A. the movement of rocks and soil by water, ice, wind & gravity

    • B. 

      B. the rusting of metals

    • C. 

      C. the breakdown of larger rocks into smaller rocks

    • D. 

      D. the cause of global warming

  • 14. 
    Metamorphic rocks are rocks that can transform or metamorphise into another type of rock through
    • A. 

      A. erosion, deposition and cementation

    • B. 

      B. large amounts of heat and pressure

    • C. 

      C. From the suns UV rays

    • D. 

      D. cooling down from volcanic magma

  • 15. 
    The inner core of the earth contains
    • A. 

      A.Magma and lava

    • B. 

      B.Iron and nickel which is molten from the heat it is subjected to

    • C. 

      C.Molten rock

    • D. 

      D.Iron and nickel which is solid from the pressure it is under

  • 16. 
    Igneous rock is formed by
    • A. 

      A. cooling of volcanic magma

    • B. 

      B. sediments turning into rock through cementation

    • C. 

      C. burning coal

    • D. 

      D. transforming through heat and pressure

  • 17. 
    Wind, Solar and Geothermal power are example of
    • A. 

      A. fossil fuels

    • B. 

      B. renewable energy

    • C. 

      C. calm energy

    • D. 

      D. energy with pollutants

  • 18. 
    One of the benefits of the thinning of the arctic ice is
    • A. 

      More polar bears will die

    • B. 

      Our biodiversity will reduce

    • C. 

      It is easier to explore for minerals & for shipping

    • D. 

      We get higher tides

  • 19. 
    Coal, natural gas and oil are all examples of
    • A. 

      Clean energy

    • B. 

      Fossil fuels

    • C. 

      Renewable energy

    • D. 

      Environmentally sustainable enrgy

  • 20. 
    Sewage treatment plants can accidentally release untreated effluent when
    • A. 

      Toilets get blocked

    • B. 

      High tide occurs

    • C. 

      Large amounts of rain & flooding cause overflow

    • D. 

      The weather gets hot

  • 21. 
    The hydrosphere is
    • A. 

      A big hydroelectric scheme in the Snowy Mountains

    • B. 

      The earths crust

    • C. 

      The air that surrounds the earth

    • D. 

      The layer of water on the earths surface

  • 22. 
    The greenhouse effect is
    • A. 

      Growing good fruit and vegetables in a greenhouse

    • B. 

      The craze for buildong new greenhouses

    • C. 

      The hole in the ozone layer getting bigger

    • D. 

      When temperature rises due to trapping the suns heat

  • 23. 
    Carbon dioxide is a a major contributor to global warming. The most obvious way humans contribute to carbon dioxide emissions is
    • A. 

      Decomposing of plants and animals

    • B. 

      Burning fossil fuels

    • C. 

      Overgrazing by livestock

    • D. 

      Using aerosol cans

  • 24. 
    What is located at: Latitude 30˚ 52´ South & Longitude 143˚ 45´East ?
    • A. 

      King Island

    • B. 

      Kangaroo Island

    • C. 

      Tasmania

    • D. 

      King George Sound

  • 25. 
    What is loacted at Latitude 34˚ 45´ South, Longitude 137˚ 00´East
    • A. 

      Uluru

    • B. 

      Murray River

    • C. 

      Great Victorian Desert

    • D. 

      Kangaroo Island

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