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Friday 20 September 2013

The Marvellous Melting Icemen!


In Science on Wednesday, we met Copernicus. He's a scientist and he loves to hear us talking about all our different ideas in science. 


Together, we carried out the experiment that we had planned on Monday. 

We put three cubes of ice into each bottle and wrapped one of them in cotton wool. 



We even put some cotton wool on top like a hat!




We learned that science always has to be FAIR so we made sure to put the same amount of ice into each bottle and to put them in the same place. 




We worked hard while we were waiting for the icemen to melt.






When we checked them, the one without the coat had all melted but the one with the coat still had ice cubes in it!  We couldn't believe that the coat of cotton wool had actually made the snowman melt slower! Most of us had guessed faster! 




It turns out cotton wool is an insulator - it keeps warm things warm and cold things cold! 

Next week we'll be designing and making an insulating cover for our drinks so that we can keep them nice and cool to quench our thirst! Start thinking now about what you're going to use! :-)

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