When the paper burns, it will turn to ______________
  • black
  • melt
  • ash
  • coal
Water turns into ice when it is ___________
  • heated
  • cooled
  • melt
  • low temperature
Wood burns when it is ___________
  • heated
  • cooled
  • lose heat
  • freeze
Gold has ____________ changes when it is heated.
  • permanent
  • lose heat
  • gain heat
  • temporary
The wax turned into a liquid and then ____________
  • back into a solid
  • become permanent
  • it couldn't back to original form
  • lose heat
Freezing is _______________
  • process of changing solid into liquid
  • process of changing permanent substance
  • process of changing a liquid into solid
  • process of changing liquid into solid
Melting is __________________________
  • the process of changing solid into liquid
  • the process of changing permanent substance
  • the process of changing liquid into solid
  • the process of changing temporry substance
The temperature will start to _____________ when the crushed ice melts.
  • decrease
  • increase
  • lose heat
  • reduce
When plastic burns, a new __________ is form.
  • material
  • substance
  • temporary
  • permanent
Liquid wax is in a different ________ from solid wax.
  • substance
  • temporary
  • state
  • permanent
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