and also give your explanation about the experiment you shared to me.
2007-03-18 15:46:25 · 3 answers · asked by mac 2 in Science & Mathematics ➔ Chemistry
ice cream making without using a maker...
instead, you put whipped cream, milk, sugar and whatever flavoring (like chocolate/strawberry syrup, cookies, oreos, etc) in a ziplock, seal it and then mix it well. the measurement is all up to how you want it to taste though i recommend putting a larger proportion of cream to milk coz we added more milk since we brought tons of milk and we didn't want to waste it but when it was done, it tasted like milk and not ice-cream...
then in an empty gallon container of ice-cream, cover the bottom with about 2 inches of ice-cubes... make sure there's still space to put in the ziplock and more ice... sprinkle a lot of rock salt on the ice so that it would acquire a much lower temperature... put in your ziplock in the container and put more ice with rock salt over it...
once that's done, seal the container and shake/roll it around... if you want, you can dance with it, that's what we did... just make sure it won't open... after some time, check to see if the mixture in the ziplock has hardened... if not, seal the ice cream container again adn dance with it some more... but if so... take the ziplock and wash off the salt on the ziplock... open the ziplock and there you go, ice cream!
the principle here is playing with the freezing point of mixtures and the change of phase of matter...
some reminders though, make sure that the ziplock is sealed and has no holes or anything coz you want to avoid the salt mixing in with the ice-cream... also, the more rock salt you add, the colder the ice would be and the faster the ice cream would harden
this sounds terribly simple but i can't remember most of the experiments our class did in laboratory studies that didn't have to use so many dangerous lab chemicals...
try candle(gel) making and/ or soap making...
i hope this helps...
2007-03-18 16:22:30 · answer #1 · answered by crimsiris 2 · 0⤊ 0⤋
This is really easy and you could probably go to your fridge and do it right now.
Take vinegar and pour it over some baking soda in a glass. This is a classic acid/base reaction. It will fizz and foam up really good.
2007-03-19 00:17:22 · answer #2 · answered by pharmman 3 · 0⤊ 0⤋
coke + menthos
think it has to do something with the acid in the coke that reacts to some compounds of menthos..
dont really know why , but its a cool experiment..
2007-03-18 22:49:45 · answer #3 · answered by strezz_up 2 · 0⤊ 0⤋