Your favorite drink is a liquid until it gets really cold. Your liquid drink would be pretty good with ice just floating in it…the ice cubes would make the drink colder…but the ice cubes would not make the drink freeze into a slushie.
Ice forms when the temperature of water is 32 degrees or colder. You don’t want the ice cubes to melt IN your drink, you want your DRINK to turn slushie. In order to make your drink turn slushie you have to get it really cold. Salt lowers the melting point of water. To make a slushie you want the temperature around the bag of your favorite drink to be lower than 32 degrees so your drink will freeze. When you add salt to the ice cubes you lower the melting point of the ice cubes by several degrees. The ice cubes stay colder, longer – long enough to turn your drink slushie. Your salt/ice mixture will make your slushie faster than your freezer! That secret is the catalyst – the salt.
Fill the smaller container with your favorite drink and make sure the top is on good. . Add the ice and salt to larger conainer. .Place container 1 into the salt and ice. Place the top on this one and shake it gently. In about 15 minutes y the ingredients in the smaller one will start to firm up. What started out as a liquid is changing to a solid.
And if you’re feeling like something with a few more ingredients, try this, ziploc bag ice cream!:
Words to Know:
Heat - To increase in temperature.
Melting Point – The temperature at which a substance will change from a solid to a liquid.
Thermodynamics – The study of the transfer of heat.
Catalyst – Something that makes a change happen faster.
Seawater freezes at 28 degrees.