Heat loss can cause

  • condensation
  • freeze into solid
  • both a and b
  • evaporation

Salt can be separated from water in a salty solution by

  • heating
  • filtering
  • sieve
  • leaving at room temperature

The change which can go back to its original shape is called

  • reversible
  • irreversible
  • same
  • constant

Changes in matter can be observed upon

  • separating
  • filtering
  • mixing
  • heating

Raw egg is completely different in shape, color, taste, smell from

  • boiled egg
  • fried egg
  • both a and b
  • organic egg

The gas release on mixing fruits salt with water is

  • oxygen
  • nitrogen
  • carbonmono oxide
  • carbon dioxide

To fry or boil an egg we need

  • pan
  • heat
  • water
  • match stick

Liquid water evaporate or boil to turn into water vapor and steam by gaining

  • water
  • heat
  • pressure
  • density

Burnt sparklers and burnt books pages are examples of

  • reversible
  • irreversible
  • same
  • constant

Heat gain makes the ice to

  • freeze
  • evaporate
  • melt
  • dissolve

Iron adopts changes slowly and gradually by process of

  • rusting
  • moldings
  • fermentation
  • explosions

Formation of gas from any liquid on boiling is due to

  • water
  • heat
  • pressure
  • density

Oil and gas catch fire

  • easily
  • slowly
  • not at all
  • extinguisher
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