Ice Cream Lab
Questions: What is a physical reaction? What is matter? What is a molecule? What are freezing points? What creates the consistency of ice cream?
Materials: 1 teaspoon, ½ teaspoon, one small Ziploc bag, one large Ziploc bag (one per group), ¼ measuring cup, 1/3 measuring cup, salt, newspaper, half and half, vanilla, chocolate syrup, ice, sugar, thermometer
Procedures:
1.) You will work independently, moving like an assembly line to put ingredients in bag. You will include 6 to 8 bags in ONE large Ziploc bag. Put 1 thermometer in the bottom of large Ziploc before you add other bags. Get your initial temperature.
2.) Take your small Ziploc bag and form a single file line at the door.
3.) Using ¼-measuring cup, pour ¼-cup (2-ounces) of half and half in small bag.
4.) Add 1-teaspoon sugar to bag mixture.
5.) Add a dash of chocolate syrup or ½ teaspoon of vanilla extract to bag mixture.
6.) Seal small bag (make sure air is let out of bag) and squish everything around to mix well.
7.) Put 6 to 8 small bags in one large Ziploc bag.
8.) Fill large Ziploc bag ½ full of ice.
9.) Use 1/3-measuring cup and pour 2/3-cup (5-ounces) of salt OVER ice in large Ziploc bag.
10.) Wrap large Ziploc with newspaper so it looks like a tootsie role.
11.) Work together and shake the tootsie role for 5 minutes.
12.) Remove small Ziploc bags. Take out thermometer and record final reading. Through away large bag. Use spoon and enjoy ice cream.