a person holds an empty glass beaker and pours hot water into it. why does it take a few seconds before his hand starts to feel hot?

i learned about this in science

i think it is called convection.

so hot water has heat or thermal energy, so it will take a while for that energy to rise up into the handle.

notice how cold water won't do this as easily as warmer water would, cold water is more dense than hot water so it stays at the bottom of the pitcher. as that is happening the warm air is rising up and causing his hand to get warmer as well.

answerdmitry mendeleyev made a workable classification of the elements

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.