We have already published several science workshops to do with children, but I think it is worthwhile to continue researching to be able to offer you this opportunity to have fun with the children, giving them, in addition, resources to familiarize themselves with science. Our workshop today says goodbye to summer with a snack for young scientists. We will learn to make homemade ice cream without a fridge and make ourselves a glass of ice. Simple, cheap and very interesting.
Any of our science experiment evenings can end beautifully if we prepare a delicious snack for little scientists. It is a delicious way to say goodbye to the summer while it is still warm, although, I confess, that we eat ice cream all year. And more if they are healthy and homemade.
We will need cream, sugar, a clean plastic bucket, an airtight freezer bag, lots of crushed ice and plenty of fat salt. We are going to make homemade ice cream without using the fridge.
First the adults will beat the cream until it is mounted and the children can help us by adding the sugar and, if we want, the supplements they choose: pieces of chocolate, cinnamon, sliced strawberries or anything else we like. We will put everything in an airtight freezer bag and close it tightly.
We will buy a bag of ice and chop or crush them until we leave them as small as we can. We went out into the street and hit the bag, protected so it wouldn't get stained, with a bat. They had a great time.
Then we put the crushed ice in the bucket, adding salt, approximately one third of the volume of ice and introduce the bag with the cream mixture mounted inside, well covered.
We will have to take it very carefully, because the ice will become water and it will be very cold, being able to reach 9 degrees below zero, and be shaping the contents of the bag as it freezes to prevent it from staying like a stone and have the texture of ice cream. Ice cream without fridge or freezer, delicious.
In little more than ten minutes we will see how the contents of the bag are frozen. You just have to take the ice cream out of the bag and eat it. I assure you that it will be delicious and the children will enjoy the taste and scientific experience.
Make ice cream without a fridge It is possible thanks to a process that we can explain scientifically. Ice has a thin layer of liquid water on its surface. The salt we have added dissolves in that water and forms a saturated solution, that is, the water has admitted all the salt it is capable of dissolving.
At that moment the curious effect is triggered. To get water, the solution, which tends to dilute, will absorb energy from the ice, causing the set to drop in temperature to nine degrees below zero. And it is that the solution of water and salt is in a liquid state at below zero because its freezing point is lower than that of water alone, which is 0 degrees.
With this procedure our grandmothers made ice cream when there were no freezers at home and we can do it too, preparing a delicious snack that mixes ice cream with science. Enjoy it.
Let's get a glass of ice
Yes, I wrote that, a glass made of ice. This is another fun experiment that we can do that afternoon and then, of course, take a milkshake in it or even put in our rich ice cream.
We are going to need two plastic cups, one big and one smaller. Also, duct tape and, of course, water. I usually put a droplet of food coloring, it may not be the healthiest, but they love the effect.
We will fill the large glass in half and put the small glass inside. Then we have to bond them with the adhesive tape so that they remain fixed. The tape should be strong and not lose its adhesive ability to get wet. Putting it on may cost a bit, but with patience it is achieved. The idea is that between both glasses a layer of water remains.
Then, we will put our invention in the freezer and when we take it out, wetting the plastic cups with water from the weather, we will detach it with ease and we will have this impressive glass of ice. They will love it. In addition, if we are careful, we can use more ingenuity and make glasses of milk, milkshake, juice ...
With this we finish for today. On Friday a new workshop, this time, I assure you that it will be fun to get lost in Atlantis or discover many more scientific mysteries So fresh, they are already frozen. It's over the summer with the children, but we will continue to enjoy.
Video | Stevespanglerciencie, Youtube On Babies and more | Cooking with children, Cooking, learning and children, (II), (III)
