Today we had to use all our senses to see if we could see signs that a chemical reaction had taken place. We listened for fizzing, we watched for colour changes or things going cloudy, we felt the test tube to see if there was an increase in temperature and we carefully smelt for any gases. We tried to write down what we saw as accurately as we could. We had to use all our safety skills because we were working with chemicals and lots of glass ware.