Analysis
It seemed for all of them that they started evaporating slowly. When they heated up, they started to evaporate quicker.
Both juices had something strange happen to them. The apple juice had some mould growing on the top in the end and the orange juice bubbled up and then crusted over. It smelled like raw bread dough.
The orange Tang, the coke, the apple juice and sort of the orange juice had a syrup texture near the end. The coke had the most, apple juice second, Tang third and the orange juice had the last time with a syrup texture.