How to make an explosive can?
150926
A good way is by pressure; e.g. the Works bomb. If you would be more specific, that might help. Don't hurt yourself, either.
618003
You're going to need containers to move stuff around in which fit closely to the tubes, the tubes themselves, and then an air compressor or vacuum pump to blow them around.\n\nThe link below is for a company which will build it for you. I suspect that not many people build these themselves.\n\nGood luck!
1026333
Here's a clever way to make an artificial volcano. \n\nMaterials:\n1.flour 2. water 3.food colorings-red and yellow 3. a small plate 3.baking powder 4.vinegar 5.pencil \n\nExperiment:\nFirst mix the plain flour in a little flour,make it into a dough then make it in he shape of a small mountain and keep it on the small plate then make a hole by inserting the pencil into the top center of the mountain and allow it to dry ,after it dries remove the pencil. You will see that it is like a mountain with a volcano hole. Put baking powder into the hole along with the red and yellow food colorings and then gently pour a little vinegar you will soon see that vinegar and baking powder react eject out from the hole and that is along with the color which looks like the volcano erupting from the mountain. \n\nData and Observations:\nWhen an acid reacts with a base effervescence is formed and a salt is formed.
50640
Dust explosion is cool.  "A good analogy of the effect of particles with a high surface area is that of a granary explosion. Grain, in a pile, is not all that combustible. However, if you pulverize it, and then suspend it as a fine dust in the air, a spark can result in an explosion."\n\nA friend of mine did a demo with a squeeze bulb, some plastic tubing, a funnel, a candle, a coffe can, and some fine powder.  You can use corn starch, creamer, flour, lots of stuff will work.  He mounted the funnel in the bottom of the can and ran tubing from the bottom of the funnel through the can to the squeeze bulb.  To make the explosion, put a small amount of your powder in the funnel, light the candle and put it in the can, put the lid on the can.  When you squeeze the bulb, the powder puffs out of the funnel into a little cloud.  The candle ignites the cloud blowing the lid off the can.  Kewl!  :)
36839
TAKE A EMPTY TIN CAN PUNCH A HOLE IN THE BOTTOM THREAD A STRING INTO IT THAT 2XS ITS LENGH TIE A SMALL KEY RING TO THE END OF IT THEN PULL THE STRING TILL THE KEY RING IS MID WAY INTO THE CAN AND TIE IT OFF AT THE BOTTOM OF CAN. VIOLA HOME MADE COW BELL
227578
how is it used - it is simply added to the mixture\n\nperhaps you wished to know the why?\n\nit is used mainly because the average explosion is not perfect, and cannot 'grasp' as many oxygen molecules from its surrounding as possible in such a short time period of an explosion. Since the explosion can't 'breathe' enough oxygen on its own, the maker of the explosion basically gives it little oxygen packs - a chemical that is added for the sole purpose of putting more oxygen in the mixture, to make the boom, oh so much bigger\n\nother forms of oxidizers: \n\nperchlorates are a big one commonly used
1096154
use a pop bottle quarter fill wth water, and seal with a rubber cork(one with a hole in the middle this is where you put your compressor attachment)  add fins to your bottle just like a real rocket\n\nuse a half pipe as a ramp and angle it a 45 degrees ataach the compressor to the bottle and turn on.  when the air pressure gets high enough the cork will shoot out and the rocket will fly.  try different amounts of water and change the angle
213149
nitro gunpower a fuse and a bottle of some sort  if u want to add some flamable stuff from around the house
361573
First mould a volcano with plastercine or play dough.\n\nThen fill it with bicarbonate of soda, baking powder or health salt.\n\nGet some vinegar and then mix it with reddish-orangey (Lava colour) ink or food colouring.\n\nThen pour your coloured mixture with the bicarbonate of soda, baking powder or health salt in the volcano.\n\nHey Presto! The bubbles should start to rise. \n\nWhen Bicarbonate of Soda is mixed with an acid liquid (Vinegar)it releases the gas carbon dioxide (CO2): \n\nNaHCO3     +     H+     ----->     Na+     +     H20     +     CO2\n(soda)         (acid)           (sodium)       (water)        (gas)\n\n^ Above is the word equasion. If you are good at science you might be able to understand this.\n\nI hope I helped you.
147975
First, find the volume of the can: [pi]r-squared x the height of the can. If the 3 balls in it each have a radius of 5 cm, then they are each 10 cm tall, and the can is 30 cm tall. So the volume of the can = [pi]x25x30 = 750[pi] cubic cm.\n\nNext, the volume of each ball is 4/3 x [pi]r-cubed, or 166.67[pi] cubic cm. Three of them would be 500[pi] cubic cm.\n\nLast, subtract the volume of the balls from the volume of the cylinder to get 250[pi] cubic cm, or about 785.4 cubic cm.
252576
I've never tried this or heard of it being done, so ask your teacher if it's safe to try this experiment. Take a balloon that has a good long neck on it and force it into the tab opening of an empty aluminum soda can. Then blow the balloon up as hard as you can so that it expands to fill the inside of the can and forces all the air out of the empty can (which really wasn't empty because it had air in it!) Continue to pinch off the neck of the balloon with your fingers so the air won't come out of the balloon. Now fill up a big tall kitchen pot or the sink half way and turn the aluminum soda can upside down completely into the sink or pan of water until the top of the can and pinched off balloon are partially submerged under the water. Now start letting the air out of the balloon gradually and watch the bubbles come to the surface of the water. When all the air is out of the balloon, it still has atmospheric air pressure inside it which keeps the can from being crushed by the atmospheric air pressure of the air in the room above the water level. So try to pull the balloon out of the soda can gradually while making sure to keep the soda can tab and balloon openings under the water level. Results? Does the can get crushed by atmospheric air pressure? Of course, we always have about 14.7 pounds per square inch of atmospheric pressure at sea level. You may have to experiment with different container types that your teacher says are safe to experiment with and one that had the globular shape of a blown up balloon would allow the air to be pushed out fully. You should wear good safety glasses in case any other container (like thin plastic) rather than the aluminum container shatters in the process of imploding.\n \nPS,  Using a wider mouth container, like the aluminum soda can with it's top sawed off, you could pull the balloon out quickly even when it was blown up with air. Don't cut yourself on any sharp metal edges though. The metal or plastic container material can't be too strong and thick because it can't collapse easily then under the force of the atmospheric air pressure.
611943
take a large sheet of aluminum foil, spray oven cleaner all over it, fold it up and put it in a 2 liter soda bottle (plastic is safer), tighten the lid and throw it, or stand back. - do this outside.
450016
Hi\nYou can just use a simple plastic water,drink or juice bottle.\n\nIMPORTANT NOTE:your rocket may not work if you use a screw lid.\n\nTo make rocket:\n1 Tape a straw to the side of the bottle:make sure that one end of the straw is within 1-2cm of the top of your bottle\n\nTo make launch pad:\n1 Insert skewer into a round piece of cardboard so that the skewer is standing securely upright.\n\nTo launch rocket:\n1 Insert one of the following fuels:\n   1x crushed alka-selzer tablet and 15ml of water \n   1 teaspoon of baking soda and 40mL of vinegar.\n2 Then put on the lid on as soon as the substance(s) are in the rocket.\n3 Place rocket on launch pad so that the skewer goes through the straw.\n4 watch in amazement as your rocket takes off!
639483
Sure -- all you have to do is add the activation energy and the reaction proceeds explosively.\n\nJust mixing the two gases together will not spontaneously generate water vapor -- you need to get the reaction started -- a flame or a spark will do nicely.  Once it's started, the rest will happen VERY quickly.
159881
Use cardboard, clay, or sugar cubs.  Cardoard would be the easiest.
385728
mix potassium chloride with chlorine \n\nlol chemical weapons
963460
Sounds like you already have some fantastic ideas!  I personally like the soda can and chocolate bar method.  I have to admit, I'd never heard of it until you mentioned it.  Now, I look forward to trying it.\n\nDon't forget flint.  That's an effective and popular method.\nYou don't necessarily need the 9-Volt battery with steel wool, I've seen it done with flashlight batteries.\nYou can still do the condom and water, just use a clear balloon (if you can find one).\n\nI'd stay away from chemicals for that age group.\n\nHere are some links for you to take a look at...\n\nhttp://www.onagocag.com/fire.html\nhttp://members.cox.net/bsatroop218/skills/nomatch/nomatch.html\nhttp://www.christianhomekeeper.com/fire.html\nhttp://www.fieldandstream.com/fieldstream/outdoorskills/article/0,13199,1149562,00.html\nhttp://www.alpharubicon.com/primitive/firewithout.htm\nhttp://www.bizarrelabs.com/firebow.htm