Conductor or Insulator?

As part of our  science ‘Materials’ topic,  we have been investigating thermal conductors and insulators. We designed a fair test to investigate which material would be the best to keep a teacher’s cup of coffee hot. We discussed the variables that could be changed and what we would measure. After making our predictions, we filled four containers (plastic, cardboard, glass and metal) with hot water and measured the temperature every two minutes. Analysis of the results showed that plastic would be the best material, as it kept the water hotter for longer. 

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