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GRADE 3

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  • The energy that the vibrations produce.
    sound energy
  • The sound that is not pleasant to the ears.
    noise
  • Where are the sound come from?
    nature, people, animals, things
  • These are structures that converts the wind into electrical energy.
    windmills
  • The machines that produces electricity in power plants.
    generators
  • This is one way through which sound travels.
    air
  • It is a vibration that travels through air or through matter and this can be heard when it reaches the ear of a person or an animal.
    sound
  • Used to trap solar power which is then converted into electrical energy.
    solar panels
  • "neighing" what is the source of this sound?
    animal
  • This falls helps supply electricity in Northern Mindanao.
    Maria Cristina Falls
  • Give 5 examples of appliances.
  • This water exerts great pressure on the generators that have been constructed in the water.
    falling water
  • A fuel that comes from the remains of dead plants and animals buried in the ground.
    coal
  • What do you call the flowing of electrons?
    electricity
  • The machines that are used to help with housework.
    appliances
  • A very quick movement of matter that causes it to make a sound.
    vibration
  • The heat that comes from the core of the Earth.
    Geothermal Energy
  • The pattern by which sound travels through matter.
    sound waves
  • Animals identify each other by the sounds they make. T or F?
    true
  • To breathe with a rough hoarse noise during sleep.
    snore
  • The energy source that comes from the Sun.
    solar power
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