Cork rocket

This is a very simple rocket that you can build with home materials.
It is powered with water, vinegar, salt, and baking soda.

Step 1: Materials

materials you will need:
- water
- vinegar
- salt
- baking soda
- cork
- plastic bottle (any bottle will work if the cork fits snugly into the mouth)
- toilet paper
- rubber band or string

tools you will need:
- knife
- funnel (optional)
- cup

Comments

[ankitcoolmaggu]

rocket is good. but why u add water to vinegar as it already contain water in it.

[Guitarmanandy]

very good very fun. wrks well.

[flubs]

 add a vid of a launch.

[icewolf]

If the cork is too small, you could just put it in the microwave for ~25s. It expands a little. But it works only with natural corks (not the plastic ones). BTW Nice instructable!

[creator 1]

hey, good idea
(sorry it took this long to comment)  q:-]

[icewolf]

nvm 

[bylerfamily]

Cool! I have done this with just baking soda and vinegar.What does salt add to the reaction?

[creator 1]

The salt makes the reaction last longer. You probably don't really need the salt, but that's the way I've always done it. Thanks for asking! see ya ( not literally) lol ><> creator 1

[toogers]

what about the water? does that do anything?

[bylerfamily]

william is away on a trip but he will be back on Tuesday.

[creator 1]

it's just a filler! q:-]

[julyer97]

it didn't work

[creator 1]

Maybe you didn't have the cork on tight enough. Or, maybe too much air was let out before the cork was placed in the mouth of the bottle. Those were the only reason I had duds. creator 1

[julyer97]

actually i didn't have any cork around, but i had this stirofoam stuff, guess that didnt work

[wee_man]

What u could also do is attach the bag of baking soda and salt to the cork so when u shake it. It comes loose and falls in

[husker]

that would be cool, but its really unneeded(good idea though)

[wee_man]

thats also a way to do the coke and mentos

[creator 1]

With the mentos and coke you really have to do that because the reaction is so fast. The reaction for this little cannon however is a little slower, so it is not absolutely needed. good idea though! ><> creator 1

[temp]

could i do this with dry ice and water instead?

[creator 1]

Absolutely! I went camping with the rest of my family once, and we bought some dry ice to keep the food in our cooler cold. My dad was showing us how cold that stuff was. We had a half full water jug, and my dad put a little chip inside it and closed the lid. I made a really loud noise, and we never found the lid for the jug. In other words, you should try it. Be careful! creator 1

[temp]

all my dry ice evaporated =(

[creator 1]

That stinks!

[temp]

lol. It doesn't really matter i got it for free. my mom was trnsporting dumplings for this thing and thy had extra dry ice so i got it.

[zrocker]

i tried making it, it was a dud

[creator 1]

Maybe you didn't have the cork on tight enough. Or, maybe too much air was let out before the cork was placed in the mouth of the bottle. Those were the only reason I had duds. creator 1

[zrocker]

thanx for help