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Freezing

Revision as of 15:52, 22 September 2018 by NRJC (talk | contribs) (About Freezing)

Key Stage 2

Meaning

Freezing is when a liquid turns into a solid.

Verb: To Freeze
Present Participle: Freezing
When you cool a liquid:
Freezing.png
A liquid will freeze to become a solid.

About Freezing

A liquid can freeze when its gets cold enough.
Freezing is a reversible process. When a liquid freezes you can always melt it back into a liquid.
You may have seen these liquids freeze:
  • Water
  • Wax
FrozenWaterfall.png
CandleFreeze.png
The water at this waterfall has frozen. When the liquid wax drips down the side of a candle it freezes because it has cooled down.

Key Stage 3

Meaning

Freezing is when a liquid turns into a solid.

About Freezing

Freezing is a reversible process. When a liquid freezes you can always melt it back into a liquid.
You can make a liquid freeze by cooling it.
When you cool a liquid:
ParticleModelFreezing.png
The particles in the liquid slow down until they are slow enough that forces between the particles start to hold them in fixed positions. The particles become stuck in fixed positions which makes the state a solid.