Year 8 Science Yearly Exam
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Questions and Answers

What happens to the energy of a bouncing ball after impact with the ground?

  • It is completely transformed into sound energy.
  • It is conserved and remains in the ball.
  • Some energy is transformed into thermal energy, and some is retained as kinetic energy. (correct)
  • All energy is lost as light energy.
  • In terms of energy efficiency, which factor most affects the height a ball bounces?

  • The color of the ball.
  • The material of the surface it bounces on. (correct)
  • The time it takes to bounce.
  • The temperature of the ball.
  • Which energy transformation occurs when electricity generates heat in a toaster?

  • Electrical energy is transformed into mechanical energy.
  • Electrical energy is transformed into electromagnetic energy.
  • Electrical energy is transformed into thermal energy. (correct)
  • Electrical energy is transformed into potential energy.
  • When analyzing trends in energy efficiency, what is an important method of data processing?

    <p>Graphing data to visualize patterns and relationships.</p> Signup and view all the answers

    Which of the following best describes a plausible solution to improve energy efficiency in machines?

    <p>Implementing better insulation and reducing energy losses.</p> Signup and view all the answers

    Which organ is NOT part of the digestive system?

    <p>Heart</p> Signup and view all the answers

    What is one of the functions of the circulatory system?

    <p>Transportation of nutrients</p> Signup and view all the answers

    Which technology is commonly used for organ transplantation?

    <p>Tissue engineering</p> Signup and view all the answers

    Which major organ is NOT part of the excretory system?

    <p>Liver</p> Signup and view all the answers

    What role do skeletal muscles primarily serve?

    <p>Producing movement</p> Signup and view all the answers

    Which of the following processes leads to physical weathering?

    <p>Freezing and thawing cycles</p> Signup and view all the answers

    What is the primary agent of erosion that shapes many landforms?

    <p>Rivers</p> Signup and view all the answers

    Which layer of the Earth is primarily composed of molten rock?

    <p>Outer core</p> Signup and view all the answers

    What process primarily shapes landforms through the breakdown and transportation of materials?

    <p>Erosion</p> Signup and view all the answers

    Which type of rock is formed from the cooling and solidification of magma or lava?

    <p>Igneous</p> Signup and view all the answers

    What is a key characteristic of renewable resources?

    <p>They can be naturally replenished over time.</p> Signup and view all the answers

    How do Aboriginal and Torres Strait Islander peoples contribute to resource management?

    <p>Through knowledge systems that prioritize environmental care.</p> Signup and view all the answers

    What is the primary focus of studying fossils in geology?

    <p>To understand geological history and past life forms.</p> Signup and view all the answers

    Which of the following best describes energy transformations?

    <p>The change of energy from one form to another.</p> Signup and view all the answers

    What impact does mining have on society and the environment?

    <p>It provides significant employment opportunities.</p> Signup and view all the answers

    Which statement about sedimentary rocks is correct?

    <p>They are created from the accumulation of mineral and organic particles.</p> Signup and view all the answers

    Study Notes

    Year 8 Science Yearly Exam

    • This exam accounts for 35% of your overall grade.
    • The exam is divided into two sections: Multiple choice questions (20 marks) and Written response questions (25 marks).
    • You will have 3 minutes to read and 50 minutes to complete the exam.

    Exam Content

    • Living Systems

      • Digestive System: Identify major organs and their role in the digestive system.
      • Circulatory System: Identify major organs and their role in the circulatory system.
      • Excretory System: Identify major organs and their role in the excretory system.
      • Skeletal/ Muscular System: Identify major organs and their role in the skeletal/ muscular system.
      • Respiratory System: Identify major organs and their role in the respiratory system.
      • Reproductive System: Identify major organs and their role in the reproductive system.
    • Earth's Crust

      • Earth Layers: Describe the structure of the Earth.
      • Types of Weathering: Describe physical and chemical weathering.
      • Agents of Erosion: Describe the agents of erosion.
      • Identifying Minerals: Define minerals.
      • Types of Rocks and the Rock Cycle
        • Describe sedimentary, igneous, and metamorphic rocks with examples.
        • Explain how they relate to the rock cycle.
      • Natural and Man-Made Resources: Investigate the use of these resources in everyday life.
      • Renewable and Non-renewable Resources: Investigate renewable and non-renewable resources and their impacts on society and the environment.
      • Extraction of an Ore: Explain the importance of mining for employment.
      • Fossil and Geological History: Explain the importance of fossils in understanding geological history.
    • Energy Transformation

      • Types of Energy: Define different types of energy and describe everyday energy transformations.
      • Energy Transformation and Energy Flow: Construct and discuss energy flow and transformation diagrams.
      • Electricity as Energy Transfer: Outline the energy transformation in the generation of electricity.

    Skills Assessed

    • Identifying questions and problems that can be tested or researched and makes predictions based on scientific knowledge.
    • Producing a plan for investigations collaboratively and individually.
    • Processing and analyzing data from investigations and secondary sources to identify trends, patterns and relationships, and draw conclusions.
    • Selecting and using appropriate strategies to produce creative and plausible solutions for identified problems.
    • Presenting science ideas, findings and information using appropriate scientific language, text types and representations.

    Important Notes

    • You must attend all timetabled lessons or scheduled school activities on the school day before the exam.
    • If you are absent for a valid reason, consult the assessment handbook for information about illness and misadventure.
    • Lack of approved proof of illness or leave may lead to a reduced assessment mark for the exam.

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    Description

    Prepare for your Year 8 Science yearly exam that covers essential topics such as living systems and the Earth's crust. This exam consists of multiple choice and written response questions, allowing you to demonstrate your understanding of various scientific concepts. Boost your chances of success with this comprehensive review.

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