Being hot, it has expanded, and weighs less than the air it displaced.
It does. It just pulls the colder air around it down harder, so the air gets pulled down furtehr than the smoke. Result: smoke goes up, air goes down, until the smoke cools enough to become air.
Some chemicals that constitute smoke are of lighther weight than others; thus, the lighter chemicals rise through the atmosphere faster than the heavier ones. This creates the swirling or curling effect.
Smoke rises upwards due to the principle of buoyancy. When smoke is released, it is hotter and less dense than the surrounding air, causing it to be less buoyant and rise. As it rises, it cools down and mixes with the surrounding air, eventually dispersing.
Smoke rises up a chimney partly due to the principle of convection. As the air inside the chimney heats up from the fire below, it becomes less dense and rises, creating a flow of warm air that draws the smoke up and out of the chimney.
Smoke detectors detect smoke by not detecting it. They sense not the smoke, but the oxygen levels surrounding it. when the oxygen levels drop, or when smoke replaces the oxygen, the alarm goes off.
Kurayami: Tar enters your lungs when you smoke and can build up.
Smoke goes up from chimneys, cigarettes, campfires, and assorted other locations of combustion.
Smoke A confused snowflake
smoke
Smoke
Smoke
smokey
Smoke from a chimney goes up then spreads out horizontally.
When smoke goes up through a tube to a container and into fire.
When smoke goes up through a tube to a container and into fire.
Nick Smoke goes by Nicky Smoke.
An umbrella