The most accurate answer to what goes up and never comes down is a person's age. Another common answer is a person's height. Heat and smoke are also accurate answers for what goes up and never comes down, due to the fact that heat rises.Know More
What goes up and never comes down is a popular riddle, as gravity causes practically everything in the universe to rise and fall. One of the most common wrong answers to this riddle is the sun, as it is a common belief that the sun comes up every day. The sun actually does not move, it is the Earth that rotates around the sun, giving the appearance of a rising sun. Helium balloons are also often perceived as going up and never coming down, but the helium reaches a certain point in the atmosphere and begins to dissipate, in turn, causing the balloon to descend back to the ground slowly.
Another common wrong answer to this riddle is gas. While gases definitely rise, they reach a limit in space and do not continue upward. The same goes for moisture. Humorous answers to this popular riddle include a cow walking up the stairs, inflation and gas prices.Learn more about States of Matter
Sublimation, when a solid transforms into a gas, is an endothermic phrase change, while deposition, when a gas transforms to a solid, is an exothermic phase change. There are a total of six phase changes in matter, and three are endothermic and three are exothermic. An endothermic phase change absorbs heat or energy, while an exothermic phase change releases heat or energy, states the Washington University Department of Chemistry.Full Answer >
According to the website ScienceBits, the reason breath is visible in cold weather is due to the condensation created when warm, humid air from the lungs collides with the colder, outside air Because frigid air cannot hold as much water vapor as hot air, the resulting saturation of water vapors into the atmosphere becomes visible to the human eye.Full Answer >
According to Elmhurst College, gas exerts pressure due to the force gas exerts on a container's walls. An example is a person blowing up a balloon. The walls of the balloon expand due to the pressure of the air molecules inside the balloon being greater than that on the outside.Full Answer >
The difference between steam and water vapor is that water vapor is typically the same temperature as the air that is present while steam is above the boiling point of water. The chemical composition of water and steam are identical.Full Answer >