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5th Grade Science - Energy

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  • Burning fossil fuels can cause acid rain to fall.
    True
    False
  • Energy makes changes and movement possible.
    True
    False
  • Oil, coal and natural gas are all forms of energy.
    True
    False
  • Transforming chemical energy into electrical energy isn’t useful to us.
    False
    True
  • What are fossil fuels?
    Coal, oil, and natural gas.
  • Does hydropower cause pollution?
    No, but it can affect the habitats of aquatic species.
  • Although we may not notice, energy is all around us.
    True
    False
  • How does moving water create energy?
    It spins turbines to generate hydropower.
  • What is uranium?
    A non-renewable energy source used in nuclear power stations to produce electricity.
  • Why are fossil fuels non-renewable?
    They take millions of years to form and cannot be replaced once used up.
  • What is the primary source of light energy on Earth?
    fire
    the earth
    the sun
    the moon
  • What is biomass energy made from?
    Trees, plants, and rubbish.
  • Why is a bow and arrow an example of mechanical energy?
    Because it stores potential energy and releases it as kinetic energy
  • What type of energy transformation happens when wood burns?
    Chemical energy is transformed into light and thermal energy.
  • What does chemical energy do in the context of food?
    It absorbs light energy for growth
    It is stored and released when the body digests food
    It creates vibrations that produce sound
    It produces heat in cold environments
  • What happened to dead plants and animals?
    Their remains settled on the ocean bed and in swamps, then got covered by sediment.
  • What is renewable energy?
    Energy that comes from sources that will never run out.
  • The lighter an object is and the faster it moves, the more kinetic energy it has.
    True
    False
  • How is thermal energy, or heat, generated?
    By the movement of tiny particles within an object
    By the presence of light energy
    By the release of chemical energy
    Through the absorption of sound waves
  • When you jump off a diving board, what energy transformation happens?
    Potential energy is transformed into kinetic energy.
  • What device is used to transform solar energy into electrical energy?
    Solar panels.
  • What do wind turbines produce before converting it into electrical energy?
    Mechanical energy.
  • Energy can be created, destroyed and transformed.
    True
    False
  • What is electrical energy used for?
    To store food
    To create sound
    To power machines
    To make objects heavier
  • Energy makes changes and movement possible.
    True
    False
  • What covered the Earth millions of years ago?
    Swamps with giant ferns and trees.
  • What type of energy is released when a chemical reaction takes place?
    Light energy
    Sound energy
    Chemical energy
    Mechanical energy
  • How is sound energy created?
    By the reflection of light
    By the vibration of objects and air particles
    By the transformation of heat energy
    By the movement of electrons
  • There are some energy sources that will never run out
    True
    False
  • When energy transformations are useful, we say the energy is lost or wasted.
    False
    True
  • How do we get fossil fuels today?
    We drill and mine them from the Earth.
  • What happens when oil spills into the ocean?
    It causes serious environmental problems and harms marine life.
  • When mechanical energy is released, it can do work.
    True
    False
  • How did fossil fuels form?
    Over millions of years, heat and pressure turned decaying material into coal, oil, or natural gas.
  • Can energy be created or destroyed?
    No, energy can only be changed from one form to another.
  • What type of energy is produced by movement?
    Kinetic energy
  • What is energy transformation?
    The process of changing one form of energy into another.
  • Fossil fuels are renewable energy sources.
    True
    False
  • Radioactive waste is a big risk of using nuclear power.
    True
    False
  • What energy transformation occurs in a toaster?
    Electrical energy is transformed into thermal energy.
  • How does burning fossil fuels harm the environment?
    It contributes to global warming, causes air pollution, and leads to acid rain.
  • We can use geothermal energy from the sun to do many things.
    False
    True
  • Energy is continually transformed.
    False
    True
  • Where is potential energy stored?
    In moving objects
    In sound waves
    In objects that are still
    In food only
  • What is geothermal energy?
    Heat energy that comes from the Earth's core.
  • What is the biggest risk of using nuclear power?
    The radioactive waste it produces, which is dangerous to humans and the environment.
  • Why are renewable energy sources good for the environment?
    They do not cause pollution and are not harmful.
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