how do you make a model volcano erupt with baking soda, liquid dish soap and vinegar?
549468
Add some baking soda first and then pour on some vinegar. You will observe some bubble forming and the bublbles will rise very quickly. If you want to make fire instead, add some glycerine to potassium permagnate. Be very careful if you want to do this.
791551
I'm not sure about anything realistic or that they can learn from... but a fun activity, if that's all you want - it to get some old wire-mesh or anything else that'll make a good surface, shape it into an open-topped cone with something just inside the top of the cone that will hold a test-tube or small container just below the top of the peak (eg you could shape some wire to hold it, or perhaps tape or somehow else fix a tube in there). You can then build up your own volcano with papier mache, when it's dry paint it (eg white snow near the tip, dark green for trees lower down, or whatever you prefer). You then mix up some white vinegar with some red food colouring to represent lava, pour a little in the bottom of the container, and when you're ready, add a spoonful of baking soda or so to it! It fizzes up and runs down the sides of the volcano...\n\nThis is a pretty full-on project to make I suppose - you may just want to make one and allow the kids to play with it! It's not exactly realistic, but it's fun...
784301
Very simple...... I did the same in grammar school......used modeling clay to form your volcano. Make sure the walls are solid, as you will be pouring liquid into it. Pour white vinegar in the volcano, (red food dye makes it  looks pretty cool), when you are ready to make your volcano "erupt", add some baking soda, and watch it bubble and overflow! Have fun!
916568
mix vinegar and baking soda.  a chemical reaction will take place.
1136054
Volcano is the classic answer.  Make a volcano out of clay and add some baking soda, vinegar, and red food coloring for the eruption.  You could use styrofoam balls from walmart or a craft store along with doll rods or straws to make a model of the solar system or an atom.  The links below are to some websites that have samples of some projects you could do.  If you tell me a little more specifically what kind of project you want, I could help more.
953720
Baking soda and vinager
490639
There is a website on how to make a volcano model below
577586
you should probably solve this for yourself. BUT.\n\nsoda/vinegar in a bottle could easily inflate a balloon around the mouth og the bottle, and if the balloon were next to a lit candle, could easily blow the candle out when it pops (because it hit the candle flame)...
567959
in building a volcano...\nmaterials:\nvinegar\nbaking soda\npebbles\nfood color(orange as lava)\nprocedure:\nArrange the pebbles or stones in a volcano shape.make sure that there is a hole at the center.Fill the hole by means of putting the vinegar mixture(vinegar+food color)then add baking soda..The volcano will erupt....
23541
vinegar and baking soda is pretty simple.
856362
Indeed, you start a nice chemical reaction. Baking soda is a base and Vinegar an acid. They neutralize each other producing CO2 (a gas), NaC2H3O2 (a salt), and H20 (water).\n\nHow cool is that? Do it in a bottle and cork it (point the cork away form you and your friends).\n\nGet an "A".
991620
http://video.google.com/videoplay?docid=-2134266654801392897\n\nmentos and diet soda, baking soda and vinegar.\n\nthough i'm wondering how the hell you're supposed to drop elemental hydrogen in water.  if you make it a solid that would be new and it wouldn't do anything...
682555
what!? the lava is a mixture of acid and base, acetic acid from vinegar and base from the baking soda.
906964
Here's a tip, leave the baking soda and something a bit complicated.  Like a Lemon battery. I have a site that has choc loads of interesting things.  Most of all very simple.
511587
Baking Soda and Water!!
540160
Assuming they are mixed:\n\nFirst, the oil should separate from the vinegar water and sugar and float on top.  You could siphon or pour that out.\n\nNext, you could heat up the water, vinegar, and sugar solution slightly.  This should cause the vinegar to vaporize first (it could be the water, you would have to look that up first) and that should separate the vinegar, and the sugar and water would be left.\n\nThen heat that up even more, boiling the water, which will leave the sugar.\n\nIf you still need everything intact, you would have to use a condensor system to collect the vapors and cool it to return to a liquid form.
196868
Put some vinegar in a small soda bottle.  Use a straw with an end of it cut so it is like a spoon to put baking soda in a balloon.  Carefully place the end of the balloon on the top of the soda bottle working around the grooves of the bottle, but not dumping the baking soda in yet.  When you are ready, lift the balloon up so that the baking soda dumps into the vinegar, and watch the balloon inflate.  You just showed a chemical reaction.