1BW - Reversible or Irreversible?

1BW enjoyed an afternoon investigating whether chocolate could be changed from a solid to a liquid. We made some predictions and decided we would try to add heat. We used a microwave and found that the solid chunks turned to liquid chocolate. We wanted to know if we could change the liquid chocolate back to a solid. After more discussion, we decided to try and cool the chocolate. Some of us thought it would be best to put the chocolate in the fridge. After 20 minutes, we observed the chocolate and found that it was now solid again! We decided that this was a reversible change. We even used some liquid chocolate to make some Easter nests. Again, we used the fridge to cool them into solid treats. While eating them, we even observed that the heat from our hands started to make the solid chocolate begin to change again! Science never tasted so sweet!😋


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