For the same substance, it will be less dense at higher temperatures and more dense at colder temperatures. There are a few exceptions, for instance water between 0 and 4 degrees C.
Yes, there is a difference in weight between hot air and cold air. Hot air is lighter than cold air because the molecules in hot air are more energetic and spread out, decreasing the overall density of the air. This difference in weight is a factor in phenomena such as convection currents.
The hand detects temperature through nerve endings called thermoreceptors. These receptors send signals to the brain when they come into contact with hot or cold objects, allowing us to perceive the difference in temperatures. Our brain then processes this information and gives us the sensation of feeling hot or cold.
noting it works (in the science meaning; to cause a change) a lot.
Tepid water is between hot and cold.
Boiling water turns to vapor in the cold because the temperature difference between the hot water and the cold air causes the water to evaporate and turn into vapor.
one is hot and one is cold
one is hot and the other is cold.
They are nice :)
the difference between Egypt and north pole is that Egypt is hot and in the north pole it is cold.
endothermic is when something changes from to hot to cold and ectothermic is when something changes from cold to hot.
Yes, there is a difference in weight between hot air and cold air. Hot air is lighter than cold air because the molecules in hot air are more energetic and spread out, decreasing the overall density of the air. This difference in weight is a factor in phenomena such as convection currents.
Hot & cold.
the difference in densities caused by the pattern of movement observed when the hot dye was placed in cold water was that the dye rose quickly - since its less dense and began to cool which is why it dropped.
temperature is term used to know how much hot or cold it is......climate is like weather that is hot, cold ..
Ones hot and ones cold.
vancouver is cold and baghdad is hot
h is hot and c is cold