I use this worksheet in my science center when I do my weather unit. I put out four cups halfway full of water. In one cup I put red food coloring. Another cup I heat in the microwave. In another cup I put a few ice cubes and the fourth cup I leave alone. Then my kids get to use thermometers to test the temperature of each cup. They draw what each cup looks like in a box on the recording sheet then they record the temperature and describe the temperature of the water and what it looks like.