we beat a bowl of water on agas
Answers
Answer:
Explanation:
A dish with water is kept in front of a heater so that the evaporating water vapours could keep the air in the room moist/humid. Air from the heater will evaporate the water, increasing the relative humidity in the room.
Explanation:
The second the can collapses in on itself is one of the best demonstrations that I do in my classes each year. It is a little startling at first, but it is a pretty effective experiment.
A few principles are working here. First, you are boiling the water in can, which turns it into a gas. Important to note is that the gas (steam) is taking up a lot more room than the liquid form of water. (Gas expands when it turns from a liquid). So if we were to cool that steam, it would shrink into a liquid. Hold onto that thought.