It's simpler then it sounds to make a working bottle rocket and doesn't cost you much money. You only need a few materials. Getting the rocket assembled is easy..but getting the parachute to launch is a bit harder.   

Step 1: Get Materials

Two 2 litter soda bottles.
A Garbage bag or plastic bag (for the parachute)
Duct tape
Cardboard or foam core
A Tennis ball 
Dental floss or string 

<p>I like her name because it reminds me of the tv show</p>
<p>goood succ</p>
What are you guys talking about you need to use tissue paper as fins
<p>Hello? It's Me </p><p>I've been wondering if after all this time you'ld like to speak</p>
<p>I have a quick question, I am doing this as a school project and we did a test run today and it turned out ok, but i wanted to make it better. So I found this, but I am just wondering, what is the point of the tennis ball? I am having just a little bit of trouble understanding this</p>
It's for the weight, you need some sort of weight to make it I guess more stable
For the top bottle, when you cut the opening off, do you need to tape it?
<p>this is difficult 2 do</p>
<p>sometimes brothers can be an exception. </p><p>#fortune kitten</p>
<p>how do I launch it?</p>
<p>same here. didn't know at first.</p>
<p>didn't have duct tape. used regular tape. didn't work this time. </p>
<p>What the heck does * mean?</p>
<p>how do y do the parachute?</p>
<p>OK can this be launched without the fins?? cause I need this for my project...</p>
<p>I dont no how to launch it? We use what for launch it??????????????????!!!</p>
<p>im coin the same thing</p>
<p>u need to build a bottle rocket launcher </p>
<p>hey what are u talkin about</p>
<p>rubbing achol and a lighter work good too</p>
<p>I made it but how do you launch it</p>
<p>What is the tennis ball for?</p>
<p>For the parachute</p>
<p>how do u make the parachute stay to the bottle so the parachute can land on the ground safely?????</p>
<p>what does &quot;Then once the string is tied to the bag you cut a hole in the tennis ball so the string can fit through and get to the other side of the tennis ball. Then make a hole in the piece of cardboard or foam so the string can also get through. This will hold the tennis ball and string in place. Then tie the string so the tennis ball stays attached to the bag.&quot; mean? What piece of cardboard? What does the piece of cardboard look like? Do you mean one of the cardboard wings on the rocket? There was no instruction for the piece of cardboard that the strings pass through. What is the purpose of this piece of cardboard? Please be more clear if you are giving instructions.</p>

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More by smallville0628:How To Make A Bottle Rocket 
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