We put the freezing temperatures and ice outside to good use 
as we explored the 3 states of matter , solid, liquid and gas.
By experimenting with ice collected in the playground 
we found out that materials can change state 
when heated or cooled.
We also noted that the changed state can 
sometimes be reversed.
When a liquid is heated it evaporates
and forms gas e.g. steam from our boiling kettle. 
When gas is cooled it condenses to form a liquid.
e.g our boiling kettle experiment repeated next to the cold 
classroom window.
 
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