I have a science project i have 2 make a submarine it has 2 float sinq then float again please help me?

Question

i need materials, and instructions too please

Answer 1

Make your sub have a container with holes that can fill up enough to sink your sub (not sink too deep). Have a chemical reaction happen inside this container when its full of water which prodcues a gas which pushes out the water to make the sub float again.

This site has materials and instructions:
http://www.vanderbilt.edu/vsvs/New%20VSVS%20Site/Web%20Lessons%202006/Bouyancy%20Submarine/for%20web/Buoyancy%20(Submarine).pdf#search=%22buoyancy%20%22sinks%20then%20floats%22%22

Answer 2

You might want to consider using 3 PET bottles tied together with the othermost 2 bottles acting as water tanks for the 'submarine'. By having the bottles uncapped, introducing water to the 2 outer bottles will sink it. And you can float it again by having rubber tubes inserted into the bottle and blowing air into it to make it lighter and make it float?

Answer 3

I think if you put a orange seeds in a glass of ginger ale, they sink and float once the air bubbles accumulate around the seed, Form your model around this premise.

Answer 4

C0URTNEY! u little brat! =/ i regarded up: submarine undertaking solutions & then i found u! its the night until now its due and its approximately night & i havent even started my undertaking yet! WAAHHH! =[

Answer 5

first go to howitworks website.
then search the market.
finally dumb the idea

Answer 6

uhh. take a toy boat. push it under water. then pull it back up.

Answer 7

Try http://www.history.navy.mil/branches/teach/dive/build1.htm
or
http://www.geocities.com/TelevisionCity/Set/4567/sodaex.html

Answer 8

http://www.vanderbilt.edu/vsvs/New%20VSVS%20Site/Lessons%20and%20Training%20Presentations/Buoyancy%20(Submarine)/Buoyancy%20(Submarine).doc

Answer 9

good luck on that.