1. Describe the physical properties of the substance that remains in the evaporating dish.                                                                                crystallised white  blobs of salt shiny

2. Where is the water that was in the salt water solution?                                                                                                                                             Evaporated in the air and is now gone

3. What do you think the substance is that remained in the evaporating dish?                                                                                                      Salt evaporated crystallised water
4. What could you do to identify the substance?

You could see its characteristics or do Chromatography