In the hot (yellow) water, the water molecules are slightly further apart than in the cold (blue) water. The hot water is less dense and floats on the cold water. When the cold water is placed on top, ...

Other culprits could include a low coolant level (which we already checked), broken serpentine belt, malfunctioning water ... to get hot air or bypasses the heater core to get cold air.

This experiment demonstrates how water at different temperatures has different densities, creating beautiful layering effects. You'll see how warm and cold water interact and learn about density ...

The same amount of salt is added to hot and cold water. There is not much difference in the amount of salt that dissolves in the hot and cold water. Sucrose has many O–H bonds which are polar. The ...