Why did the hot water stay on top of the cold water?

why do you think the hot and cold water mixed when the cold water was placed on top of the hot water?

compare the volume, mass, and density of cold and hot water?

also in the picture the one on the left is cold water, the one in the middle is room temperature water, and the one on the right is hot water.

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates