I am doing water rockets. I was going to put water in Rocket A, and put Milk in Rocket B, and see which one went higher.
I hypothisized that Water would go higher since it had a lower density.. but no I'm hearing that milk and water have similar densities.. so there wont be much of a difference in the heights of the rockets..
So which liquids should i choose to compare
Water vs ____
I wanna do a liquid with a high density -- no soda
2007-12-15 13:03:48 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Compare pure water to brine (salt water). By dissolving as much salt as you can in the water you should get a density of about 1.2 which is certainly enough difference to get the expected variation.
Other advantages.
1 - cheap, readily available
2 - low viscosity
3 - non toxic, in small quantities
4 - non flammable
5 - colorless, odorless, non-staining
6 - use leftovers to cure fish ;-)
For fun you could add a little food coloring to distinguish the fluids.
Brine is your clear winner.
2007-12-15 15:37:35 · answer #1 · answered by goblin 4 · 1⤊ 0⤋
If this is just for a science project i suspect that the materials that you use should be practical and safe... so i agree with the first post in some respect but the things you use should be available "at the corner store" to some respect... So how about trying: 1. Sodium Chloride 2. Ethyl Alchohol (Rubbing aclohol) (not sure about the density since i think the density is lower than water) 3. Vegetable oil The thing is though that the lower the density the faster and better it burns... but that's just physics... Good luck... p.s. an ether solution may work well too...
2016-04-09 05:47:48 · answer #2 · answered by ? 4 · 0⤊ 0⤋
You could try corn syrup it has a density of 1360kg/m^3 compared to water at 1000kg/m^3.
2007-12-15 13:38:05 · answer #3 · answered by Anonymous · 0⤊ 0⤋
How about either barium or iodine solutions, as used by radiologists to enhance x-ray contrast, both of which are several times heavier than water? Kinda messy tho....
2007-12-15 13:30:44 · answer #4 · answered by Gary H 6 · 0⤊ 0⤋
You could use oil in one and to make the difference greater, you could get some calcium chloride and dissolve as much as possible in your water.
2007-12-15 17:59:43 · answer #5 · answered by Tim C 7 · 0⤊ 0⤋
What about motor oil? It has very different density.
2007-12-15 13:53:38 · answer #6 · answered by Rich Z 7 · 0⤊ 0⤋
Mercury, if you can get it...
I'd go with ethanol (denatured).
2007-12-15 14:06:32 · answer #7 · answered by quicksilv3rflash 3 · 0⤊ 1⤋