Ella and I decided to show the science behind the creation of ice cream in a bag. Teaching the kindergarteners the "magic" behind making 10 min ice cream was a great experience. We taught them about solids and liquids and the difference between them. We asked them about the freezing point of water and explained why adding salt to the bag of ice reduces the freezing point. We then compared to the salt you see on the road when it's snowy outside. The kids enjoyed shaking the bag around and watching the ice cream form. We asked them their favorite types of ice cream and a lot of them changed their opinion from chocolate and vanilla to cookies and cream. We also told them they can make it at home and mix in tons of different flavors. We explained to them that by shaking it up in a bag instead of putting it directly in the freezer it makes the ice crystals smaller and makes the flavor more powerful. We then asked the kids what they learned and they told us what solids and liquids are and how the freezing point makes the ice cream super cold. Overall, they learned a little more about what they were currently learning in science class and we applied it to real world situations and I think they really enjoyed it.
HERE IS THE RECIPE:
gallon ziploc bag:
ice
6 tbs of rock or table salt
quart ziploc bag:
1/2 cup heavy cream
1/2 cup of milk
2 tbs of sugar
topping of your choice.
-maddie and ella!!
Sam and I made chocolate cakes for our final project. Some science is the emulsion of the butter and chocolate chips. Usually they don't go together but adding heat helps to emulsify the ingredients. Also, the fats in the yolks of the eggs we added help keep the cakes puffed after baking as they create a sort of skeleton when heated. The cornstarch also has some science to it, acting as a thickening agent in the recipe and making the batter thicken. Our recipe contained 12 tablespoons of butter, 8 ounces of chocolate chips, 1 cup of sugar, 3 tablespoons of cornstarch, and 4 eggs with 4 egg yolks. We believe that our project went very well. The kids seemed to enjoy our presentation and liked getting involved and answer questions and they seemed to also really enjoy the dish once it was done.
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