Helado en una Bolsa (Ice Cream in a Bag)

How this uses STEM:

This activity is an example of an exothermic reaction! The salt on the ice makes everything colder- but how? The salt adds a thin layer on top of the ice, and saltwater has a lower freezing point!

Ingredients:

• 1/2 cup Half & Half
• 2 Tablespoons Sugar
• 1 Tablespoon Vanilla
• Salt
• Ice
• Large sealable bag
• Small sealable bag

Instructions:

1. Fill up your large bag with ice
2. Pour salt over the ice
3. In the small bag, add your half & half, vanilla and sugar
4. Seal the small bag as tightly as possible
5. Place the small bag into the large bag
6. Roll and shake the bags for 15-20 minutes or until your ice cream is thick enough to use a spoon for
7. Enjoy!