Astronomers used the Atacama Large Millimeter/submillimeter Array (ALMA) and the James Webb Space Telescope (JWST) to uncover just what is going on in Stephan’s Quintet, where hot, warm ...

The food coloring in the hot water will move around and mix more and become more green than the food coloring in the cold water. Heat is a form of energy. The heat energy from the water makes the ...

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, ...

The hot gas molecules are the same pressure as the air outside the can. When the can is placed in cold water upside down, the hot gas water molecules are cooled very rapidly. Some of the gas molecules ...