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Science

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    Materials
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  • There are _____ states of matter
    4
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  • What are the states of matter?
    solid, liquid, gas, plasma
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  • A reversible change might change the properties of a material, or the state of matter, but it doesn't create new materials. (True or False)
    True
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  • Melting and freezing are both reversible changes. (True or False)
    True
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  • ____________is the change of a solid into a liquid when heat is added.
    melting
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  • Unscramble this word- o s c o a n i n t d e n
    condensation
  •  25
  • Matter is anything that takes up space and has mass (True or False)
    True
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  • What is meaning of this safety symbol?
    flammable
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  • Is this object non biodegradable or biodegradable?
    Non biodegradable
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  • Are these items non biodegradable or biodegradable?
    Biodegradable
  •  25
  • Burning a piece of paper shows what kind of change?
    Irreversible chage
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  • Can salt be separated from water (Yes or No)
    Yes
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  • Three things needed to start a fire are Carbon dioxide, fuel and ignition. (True or False)
    False
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  • A _________ change can be undone.
    reversible change
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  • Why is glass the best material for windows?
    It is transparent
  •  25
  • Which material is hard and is attracted to a magnet?
    Metals
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