i'm in 8th grade and i have to participate in the science fair i want to do something that involves chocolate, soda, or candy. i cant think of anything.
2007-02-07 13:12:53 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
You could do something involving soda and candy - find out which soda is more corrosive. Pick a candy and dissolve it in soda, determine which dissolves first. (you might want to try a couple kinds of candy)
2007-02-07 13:15:47 · answer #1 · answered by flutterby 3 · 0⤊ 0⤋
Why not try this. When you suck up water with a pump or suck up soda with a straw, you don't really suck up these things at all.
For the water and soda are actually pushed up the pipe or straw by the Pressure of the atmosphere!
When someone finally discovered that no suction pump would lift water more than about 34 feet, even Galileo was astonished
His pupil Torricelli soon proved, however, that the mysterious 34 feet represented the Height of a column of water that could exactly be balanced by the Pressure of the Atmosphere.(.I capitalized those few words so they would stand out for you).
Water was not pulled up a pipe by any mythical dread of a vacuum, but was pushed up whenever the air pressure at the top of the pipe was reduced to less than the air pressure at the bottom by working a piston. As siphons also depend upon air pressure, these useful devices can't lift water higher than 34 feet either. To demonstrate a siphon, half fill two glasses with water, and connect them with a rubber tube, also filled with water. (need help here) Now hold one glass above the other, and water flows mysteriously from the higher water level to the lower. Raise the other glass, and the water flows back again, never stopping until the level in the two glasses is equal!
2007-02-07 14:05:11 · answer #2 · answered by mom of a boy and girl 5 · 0⤊ 0⤋
in my chemistry lab one time the teacher did a demonstration where he let a can of soda sit in a jug of chemicals and the next day the aluminum had been eaten away to expose the plastic liner that is inside soda cans. I can't remember the liqid chemicals you put the can in, but that can be part of your project: find a chemical that would attack aluminum-aluminum bonds
2007-02-07 13:22:36 · answer #3 · answered by chickbeepink 2 · 0⤊ 0⤋
Mentos and Diet Coke
2007-02-07 13:29:33 · answer #4 · answered by Cheeky_Chunky_monky 2 · 0⤊ 0⤋
soda and mentos are the best
2007-02-07 13:20:37 · answer #5 · answered by Kale R 1 · 0⤊ 0⤋