This demonstration was a great visual of density and temperature within water. It helped my understanding of aquatic ecosystems, both with the different temperatures of water, how they mix and don't mix, and the different densities between temperatures inan ecosystem. The red jar of water represents warm water, and the blue is cold water. When the hot water is placed on top of the cold water, it does not mix because cold water is more dense. Although it does not fully mix, there is a small layer inbetween the two jars that does turn purple and slightly mix. When the cold water is placed on top of the hot, the temperatures spread out and mixes, turning both jars of water completely purple.
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