Part 3: Let us make ice cream without fridge! (25 min)

  1. Explain the students that the reaction we are about to make is from liquid to solid and we are going to speed it up with a catalyzer that it is going to be de grain salt.
  2. For the reaction to be made we will freeze the juice to make it ice cream that is why we need the ice for.
  3. Let’s start to put a lot of ice in the big metal bowl. Spread the ice so that it covers all the bowl.
  4. Add a big amount of grant salt to the top of the ice. Explain the reaction that is happening with the ice and the salt.
  5. Then cover up the ice and the salt with the other metal bowl seeing upside up. Add the juice in the top metal bowl.
  6. Start spinning the top bowl with the juice inside 5 seconds to the left and 5 seconds to de right while you spread it through the bowl with a spoon. Repeat this for 20 min.
  7. Analyze the reaction that is forming and speeded up from the catalyzer.
  8. For the final product put your ice cream in a cup with some help of a spoon.