2007-01-27 23:26:21 · 3 answers · asked by Siti Maryam 1 in Education & Reference ➔ Teaching
Hot air rises! The Chinese teach this very well with the Candles that fly.
Also Vaporization, thats college level ++
ΔvHo
http://en.wikipedia.org/wiki/Heat_of_vaporization
http://en.wikipedia.org/wiki/Hot_air_balloon_festivals
Hot Air Balloons are also fun! ☺
2007-01-27 23:42:12 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Show them how everthing has a combustion temperature and doesn't need an actual flame to catch on fire. Put a bunch of flamable items in an oven with a thermometer. Keep raising the temperature and record at what temperature various items ignite. I don't know off hand, but cloth and paper and wood have different combution temps. Be carefull. Test it by yourself first, so you don't look dumb. Please have a fire extinguisher handy. Put the items in separate pyrex glass containers. I suppose you could use hot plates instead of an oven.
2007-01-28 00:49:03 · answer #2 · answered by Logic_is_Da_Bomb 2 · 0⤊ 0⤋
topic?
good conductor of heat or insulator?
2007-01-27 23:46:53 · answer #3 · answered by Ghost 2 · 0⤊ 0⤋