Instructables

Kids Magic Science Trick, Air Magic Science Tricks, Water Magic

video Kids Magic Science Trick, Air Magic Science Tricks, Water Magic
Kids Magic Science Trick - Suck water out of a bowl with air, magic science trick for kids. Kids Magic Science Tricks. Matchstix, water and air kids science magic tricks.... What you will need: 1) A bowl 2) Two matches 3) Clear glass 4) A coin

can you pls explain on what principle this works and how i can explain why this happens to my friends for my science expo

mae12 years ago
OMG! It really works :D tnx guys! I have a project on Physics now wooohooo!!!! :D
jensenks5 years ago
Terrific! I used a birthday candle and just melted some wax onto the coin to get it to stay up. I also discovered that too much water didn't work for me. about 1/2 cup is good . . . Thanks so much for sharing this!
gmjhowe6 years ago
Thats really cool! how much can you get it to take up? like will it only go up those few cms? well done!
lajocar (author)  gmjhowe6 years ago
It depends on the amount of matchsticks (candles) work well too. It can probably go up more.
Exocet lajocar6 years ago
Actually, it depends on how much Oxygen is in the air contained in the glass. The oxygen is consumed by the fire, and therefore the volume of 'air' is reduced. Adding more matches wouldn't raise the level, as they would go out as soon as all of the oxygen in the glass is consumed.
wrong but nice try, most people think that because it runs out of oxygen it creates a vacuum sucking up the water but you can get a higher level of water if you use 2 candles proving that this theory is wrong. its more thermodynamics involved in this small experiment. the air inside the glass is heated by the candle burning inside it making the air inside increase its volume but as the level of oxygen decreases the candle goes out. when the candle goes out the air inside starts to decrease its volume from cooling and creates a vacuum inside. the air pressure outside the glass then pushes the water inside in an attempt to equalise the pressure. when the pressure has equalised the flow of water into the cup stops. the more heat is put into the air the more it expands and the more water is put into it. so 2 candles, even if they burn for a shorter time still puts more energy into the air inside the glass. but this works only to a point because of the amount of oxygen in the glass eventually will become too limiting to sustain a large flame.
the origional theory would work if your were to burn a metal, ie magnesium
That's right, in fact,if you use a plastic picnic plate, you can get the glass to "suction" itself to the plate and actually lift the plate using the stem of the glass
Wow. It makes more sense now. thanks!
piee5 years ago
yezza .. it is cool ... but it is only a simple to understand like exocet said... it have been at my school experiment about 'air'.... this magic for kid only ....any way... that "CooL".... goood job -D
chrisleb3216 years ago
don't understand what your saying
Kaiven6 years ago
wowcool got to try it sometime, maybe when my friend comes over
camel flag6 years ago
cool is that like a vacuum?
Awesome! It looks fun to try out!
lajocar (author)  GorillazMiko6 years ago
Yes it is fun to do. Give it a try