Author Topic: science experiment  (Read 2176 times)

We were supposed to make ice cream out of a bunch products such as chocolate syrup and sugar. We had to make 3 bags of ice cream using different amounts of salt, 1 oz, 5 oz and 10 oz. The salt is supposed to either make ice cream freeze faster or slower but I have no clue which. It didn't seem to make any difference because none of them seemed to freeze at all. I need the answer to this, I looked up what adding salt to the ice cream will do and some sites said it will speed up freezing and some said it will slow it down. The thing I need answered is this:
Quote from: Question
You should think about how using different levels of salt will change the outcome of the experiment. Will the salt impact the way the ice cream is frozen?
Copy paste of the directions on how to make to get a better understanding.
Quote from: Materials
Measuring cups and spoons
Enough milk, cream, or half and half to provide 2 oz.
A bottle of vanilla extract and chocolate syrup
Enough sugar to provide a teaspoon
Several bags of ice
16 oz of salt
Sandwich size and freezer size plastic baggies
Newspaper, small towers, or garbage bags
  to wrap around the baggies
Quote from: Directions
Add the following to the small bag:
      2 oz of milk, cream, or half and half
      1 tsp of sugar
      a dash of vanilla extract or ½ tsp of chocolate syrup
Seal the bag and take turns squishing and shaking it to mix it up.
Fill the large bag half full with ice and add the amount of salt that follows,
      bag 1: I oz
      bag 2: 5 oz
      Bag 3: 10 oz
Make sure the small bag is sealed, then put it in the large bag and seal that bag.
Wrap the large bag in towel, newspaper, or a garbage bag, then figure out the best way to churn and shake it.
Guess how long it will take for it to freeze.
Check every couple of minutes to see if it froze, when it is, record how long it took.
Take your small bag out of the big bag and dispose of the big bag.
Enjoy your bad tasting ice cream.

use lots of salt
lotss

So, basically, you couldn't do the experiment correctly, tried to find out the results from people who did, and since that didn't work now you are asking us?

i did that in school once
it makes icecream but watery

Salt does not freeze and will forget up the freezing time of the ice cream. Using very little or no salt will end up with the best result.


Eat the salt.

Eat several bags of salt. Or snort it.

Whatever kills you.


So, basically, you couldn't do the experiment correctly, tried to find out the results from people who did, and since that didn't work now you are asking us?
Yup. I called my friend who did it and he didn't know what happened either. The only result was some terrible tasting 'ice cream'

Buy your own ice-cream and make up the results!
It can only lead to good things. :cookieMonster:


Seriously though, odd experiment.


If I remember correctly, making a compound of a liquid and salt will lower the freezing temperature of the compound. (It would need to get colder to become solid, which would take more time) I don't know if ice cream turns out better if it's frozen for a longer time, though.

So, two changes I can see are that the ice cream would take longer to freeze if it had salt in the mixture, and that the ice cream with the salt would melt more slowly (maybe someone could check me on this) when kept at room temperature.

Edit: Or would the ice cream with the salt melt more quickly because it freezes at a lower temperature?
« Last Edit: February 21, 2010, 04:51:46 PM by Zenthrox »

Salt will at first melt the compund or w/e but then if you freeze the compound with the salt, the salt will freeze overnight

Salt makes liquids colder during the freezing process.

Salt makes allows the liquids to become colder during the freezing process because of the lowered freezing point.

Clarification.