Burning Suger

This week in class we did a lab on burning suger.We placed a test tube containing two suger cubes in the flame.In this lab we learned what occures when suger is burned. Soon the buttom of the test tube began to burn so did the suger its self and smoke was coming out from the top of the test tube.After the burnt suger cooled,we observed it.The new substance was a brown-black color.The hardness was somewhat dense and solid and the texture was rough,hard and smooth.In the end my group learned that the suger was not still present because when suger is burnt it turnes into ash and the water in the suger dissolves.In my opinion I think this lab was fun and it help me better understand pysical and chimical changes.