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G6 Semester 2 Science

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  • What happens near divergent plate boundaries?
    Earthquakes and volcanoes.
  • What is the thermosphere known for?
    It has very low air density and gets extremely hot.
  • What determines the moon phases seen from Earth?
    How much of the sunlit side of the moon is visible from Earth.
  • Name the three types of volcanoes.
    Shield, composite, and cinder cone volcanoes.
  • What happens near convergent plate boundaries?
    Earthquakes, volcanoes, and trenches.
  • What is convection?
    The transfer of heat in a fluid causing hot air to rise and cold air to sink.
  • What gas is released when we burn fossil fuels?
    Carbon dioxide.
  • What is a light-year?
    The distance that light travels in one year.
  • What is a danger of a composite volcano?
    Explosive eruptions and pyroclastic flows.
  • What is a fossil?
    The preserved remains or traces of living things.
  • What happens in the troposphere?
    It’s where Earth’s weather occurs.
  • What has happened to the temperature of the troposphere in the last 120 years?
    It has increased.
  • What are the two factors when classifying climate?
    Precipitation and temperature.
  • What does the mesosphere do?
    It protects Earth from most meteoroids.
  • Name the four layers of the atmosphere.
    Troposphere, stratosphere, mesosphere, thermosphere.
  • What is one cause and two effects of global warming?
    Cause: burning fossil fuels. Effects: melting ice and rising sea levels.
  • What is special about the stratosphere?
    It contains the most ozone.
  • When did the universe form according to the Big Bang theory?
    About 13.8 billion years ago.
  • What is the greenhouse effect?
    A process by which greenhouse gases absorb and trap heat to keep the Earth warm.
  • What is one solution to global warming?
    Use alternative energy.
  • What is the difference between magma and lava?
    lava is magma that reaches Earth’s surface.
    Magma is underground
  • What happens near transform plate boundaries?
    Earthquakes.
  • Name the three types of plate boundaries.
    Divergent, convergent, and transform boundaries.
  • What is weather?
    The condition of the atmosphere at any given place and time.
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