OT Help My kid needs an idea for an invention
#11
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SUBMARINE!
Get a 16oz plastic soda bottle.... attach some form of ballast to one side... put holes in the bottom to let water in... holes in the top to let air out... attach a balloon to a hose & insert it into the bottle...... fill your sink & let it sink to the bottom.... blow into the hose the balloon will fill & it will subsurface.... blow hard & It will surface....
Fun, boat oriented, & my 11 year old got an A for it!
Good Luck!
Get a 16oz plastic soda bottle.... attach some form of ballast to one side... put holes in the bottom to let water in... holes in the top to let air out... attach a balloon to a hose & insert it into the bottle...... fill your sink & let it sink to the bottom.... blow into the hose the balloon will fill & it will subsurface.... blow hard & It will surface....
Fun, boat oriented, & my 11 year old got an A for it!
Good Luck!
#13
My daughter just had the same type of project. She made a keyless / remote front door of the house. Using a car remote as the model, took some pic.s of point remote at the door then opening the door without fumbleing for keys.
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martiniboat
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04-20-2015 12:38 PM





