Ben's Bits - Latest comments on The Submarine Project

In response to: The Submarine Project

casandy [Visitor] — Tue, 26 Jan 2010 21:34:58 +0000

get a plastic bottle poke three holes
in it and put an eraser in it it works perfectly!!!!!!!!!

you're welcome

In response to: The Submarine Project

bella [Visitor] — Tue, 26 Jan 2010 00:18:21 +0000

make a aluminum boat and put a hole in the bottom of it and sit it in the tank then it will float for 5 seconds and then it will subsurface float and then it will sink.

In response to: The Submarine Project

J miller [Visitor] — Sun, 24 Jan 2010 05:44:34 +0000

I just did this with my daughter. We used the film canister, 2 quarters, 1 penny, and 2 alka seltzer tablets. The only difference from the above scenario's was I left the alka seltzer's in the foil packet. I poked 4 or 5 holes in the packet, folded it up and stuffed in the film canister.
Worked the first time! Yeah!

In response to: The Submarine Project

Ndubisi Onimo [Visitor] — Sun, 10 Jan 2010 23:38:34 +0000

this is gonna be kind of complicated, but you can use a strong metal water bottle filled with air. the hook a small but strong pump to it. after the pump(oh, yea, since its gonna be submerged all the electronic parts gotta be water tight)put an electronic sprinkler valve at the end of the pump. wire it so the valve will be closed when the pump is off and the valve will be open when the pump is pumping either way. when the pump brings water in, it will compress the air and eventually there will be too much water in the water bottle(the water bottle acts as a ballast) sink. when the pump brings water out the air will decompress and it will rise again!!!

In response to: The Submarine Project

tWO iS BEtteR ThaN OnE By Tay SwiFT RoX! [Visitor] — Tue, 01 Dec 2009 04:48:56 +0000

btw. the idea for the paper plate and rocks, DOES NOT WORK!! so dont do that for your project. I didnt do it mysely, but my friend did. And it didnt work for her. It only sinks to the bottom and floats back up, but is doesnt sink again!! So sadly, I'm stuck with the Alka Seltzer and film bottle. :-( which is actually harder than it sounds. I'm STILL working on it. Hope this is useful info. <3TAYLOR:-)

In response to: The Submarine Project

Tay [Visitor] — Sun, 29 Nov 2009 20:48:03 +0000

I found out another cool way to make a submarine. All you need is a carrot, toothpicks, and baking powder. It's really simple. So it shouldn't take too long. I have the same project to. It's due friday. The only thing I need to find out is why does this work? Any ideas? If so, then could you post it on here? PLease and Thanks!

In response to: The Submarine Project

Emily [Visitor] — Wed, 04 Nov 2009 01:26:34 +0000

For the dixie cup with the marbles and the pencil through the middle... is the dixie cup 2 inches long? Because If it isn't, couldn't you just use like a regular plastic cup and it would use the same effects?

Well I will try because we don't have any dixie cups :)

In response to: The Submarine Project

SaraB. [Visitor] — Thu, 29 Oct 2009 02:39:03 +0000

The experiment that worked for me was... I took a large pill container with 5 large 1/16" holes in the bottom that let the water enter the capsule. Then one small 3/16" hole in the lid to let out the air. Then you put a tablespoon of salt in the capsule. As the salt combines with the water and disolves out the bottom of the vessel. It creates salt water which is less dense the fresh water and that combined with the density of the capsule makes it float back to the surface, but you must be patient it takes about two minutes to resurface. This worked for me, hope it works for you. This for all you kids like me that r freaking out because this is the dumbest project ever. Good Luck!