Volcanoes Unleashed
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Questions and Answers

During which season do bushfires usually happen in Australia?

  • Autumn
  • Winter
  • Spring
  • Summer (correct)

    • What can cause bushfires in Australia?

  • Tornadoes
  • Lightning strikes (correct)
  • Volcanic eruptions
  • Earthquakes

    • What should people have ready in case of a bushfire?

  • Picnic basket
  • First aid kit
  • Emergency kit (correct)
  • Toolbox

    • Which type of volcano is formed by explosive eruptions that eject small pieces of lava into the air?

    <p>Cinder cone volcanoes</p> Signup and view all the answers

    What is the main cause of floods in Australia?

    <p>Tropical cyclones</p> Signup and view all the answers

    What is the temperature that lava can reach during a volcanic eruption?

    <p>1,100 degrees Celsius</p> Signup and view all the answers

    What positive impact can floods have on the environment?

    <p>Filling up dams</p> Signup and view all the answers

    Which natural events can cause tsunamis?

    <p>All of the above</p> Signup and view all the answers

    What happens when a tsunami reaches shallow water near the shore?

    <p>It grows taller</p> Signup and view all the answers

    Why are tsunamis hardly noticeable out in the deep sea?

    <p>They are masked by other waves</p> Signup and view all the answers

    What is the first sign of a tsunami?

    <p>The water pulling back from the shoreline</p> Signup and view all the answers

    Which of the following is a warning sign of a tsunami?

    <p>The ground shaking</p> Signup and view all the answers

    What happens to a tsunami as it approaches the coastline?

    <p>It grows taller</p> Signup and view all the answers

    Why is it crucial for people who live near the ocean to be prepared for a tsunami?

    <p>Tsunamis can cause flooding</p> Signup and view all the answers

    What causes a tsunami to form?

    <p>A sudden movement of the Earth's crust under the sea</p> Signup and view all the answers

    Which of the following is true about tectonic plates?

    <p>They are constantly moving, although very slowly</p> Signup and view all the answers

    What happens when two tectonic plates collide?

    <p>They create mountains</p> Signup and view all the answers

    What causes the formation of volcanoes?

    <p>The eruption of magma onto the Earth's surface</p> Signup and view all the answers

    What is the Richter scale used to measure?

    <p>The strength and duration of seismic waves</p> Signup and view all the answers

    During which seasons do bushfires usually happen in Australia?

    <p>Spring and summer</p> Signup and view all the answers

    What is the purpose of an emergency kit during a bushfire?

    <p>To help people be prepared</p> Signup and view all the answers

    What causes most bushfires in Australia?

    <p>Both lightning strikes and human causes</p> Signup and view all the answers

    What do firefighters use to put out bushfires?

    <p>Both special equipment and helicopters</p> Signup and view all the answers

    What is the main reason why bushfires spread quickly in Australia?

    <p>Both hot weather and strong winds</p> Signup and view all the answers

    What happens to the land after a bushfire?

    <p>Both plants and trees need to grow again and animals need to find new homes</p> Signup and view all the answers

    Which of the following is NOT a type of volcano mentioned in the text?

    <p>Magma volcanoes</p> Signup and view all the answers

    What is the main cause of volcanic eruptions?

    <p>Pressure from magma</p> Signup and view all the answers

    What temperature can lava reach during a volcanic eruption?

    <p>1,200 degrees Celsius</p> Signup and view all the answers

    What are the positive effects of volcanic eruptions?

    <p>Enriching the soil</p> Signup and view all the answers

    What is one of the main causes of floods in Australia?

    <p>Tropical cyclones</p> Signup and view all the answers

    What are the negative impacts of floods?

    <p>Destroying homes and buildings</p> Signup and view all the answers

    Which of the following is NOT a warning sign of a tsunami?

    <p>The ocean appearing calm and still</p> Signup and view all the answers

    What happens when a tsunami reaches shallow water near the shore?

    <p>It grows taller and crashes onto the land</p> Signup and view all the answers

    What causes tsunamis to form?

    <p>All of the above</p> Signup and view all the answers

    Why is it crucial for people who live near the ocean to be prepared for a tsunami?

    <p>Tsunamis can cause devastating flooding</p> Signup and view all the answers

    What happens to a tsunami as it approaches the coastline?

    <p>It grows taller and crashes onto the land</p> Signup and view all the answers

    What is the first sign of a tsunami?

    <p>The water pulling back strangely</p> Signup and view all the answers

    Which of the following best describes the impact of a tsunami when it reaches shallow water near the shore?

    <p>It grows taller and crashes onto the land</p> Signup and view all the answers

    What is the main cause of tsunamis?

    <p>All of the above</p> Signup and view all the answers

    Why are tsunamis hardly noticeable out in the deep sea?

    <p>Ships sailing far from the coast rarely feel them</p> Signup and view all the answers

    What is the first sign of a tsunami?

    <p>The water pulling back strangely</p> Signup and view all the answers

    What can cause damage and danger to communities during floods?

    <p>The impact of floods</p> Signup and view all the answers

    What should people do if they hear the warning signs of a tsunami?

    <p>Follow the guidance of adults and head to higher ground immediately</p> Signup and view all the answers

    Which of the following is true about tectonic plates?

    <p>Tectonic plates are constantly moving, although very slowly.</p> Signup and view all the answers

    What causes the formation of mountains when tectonic plates collide?

    <p>The crashing of tectonic plates together.</p> Signup and view all the answers

    What is the main cause of earthquakes?

    <p>The movement of tectonic plates.</p> Signup and view all the answers

    What is the strength of an earthquake measured by?

    <p>The Richter scale.</p> Signup and view all the answers

    What natural disasters can be triggered by earthquakes?

    <p>Tsunamis and landslides.</p> Signup and view all the answers

    How do scientists determine the location and magnitude of an earthquake?

    <p>By using seismographs to measure the strength and duration of seismic waves.</p> Signup and view all the answers

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