Rainbow Magic Milk Science Experiment

Science or magic? This rainbow dancing Magic Milk Science Experiment is a enjoyable strategy to discover the chemistry of floor stress.

That is one very cool experiment. To children, it will probably seem greater than a bit of magical however the impact is all science – no magic right here. It’s a chemical response with floor stress in motion! Examine the reason beneath the experiment process for extra details about how and why the magic milk experiment works.

Rainbow Magic Milk Science Experiment

You’ll need:

1 Tablespoon dish cleaning soap/dishwashing liquid in a small container
1 half cups of entire/full fats milk
10 drops of every of your chosen colors of liquid meals colouring
Dinner plate
Cotton swab

Experiment process:

1. Pour about one tablespoon of dish cleaning soap right into a small container. Put aside.

2. Rigorously pour milk onto a dinner plate. It’s okay should you see bubbles within the milk. Let the milk sit for a minute in order that it stops transferring within the dish, turning into fully nonetheless.

three. Drop meals colouring into the milk in the course of the dish. Preserve the colors separate. The meals colouring could unfold out barely as you possibly can see pictured in our pictures. You will get inventive with the place you place the drops and house them out how you would like.

We used neon meals colouring for this exercise, which appears actually cool however you possibly can keep on with a traditional color palette or experiment with utilizing simply heat colors or cool colors.

four. Dip a cotton swab into the dish cleaning soap.

5. Place the dipped cotton swab in the course of a color and observe the magical response! You need to see the colors begin to unfold out in the direction of the perimeters of the plate. They’ll proceed to maneuver and alter over time.

You possibly can repeat this step a couple of occasions, putting the cotton swab in numerous areas of the milk/colouring combine.

Tip: Children also can take their dipped cotton swab and “draw” or “swirl” within the meals colouring. Finally the colors will combine collectively till the milk turns into one colour.

In the event you permit the milk to sit down some time earlier than all colors are blended fully collectively, you will notice the milk proceed to maneuver and alter in actually neat methods, as you possibly can see within the pictures.

Watch over time how various things look!

6. When full, eliminate milk within the sink.

The Science Behind the Magic Milk Experiment:

Milk as a liquid consists primarily of water, with a lot smaller percentages of carbohydrate, fats, protein and nutritional vitamins/minerals. Milk composition does range based on the species and breed of animal, the animal’s feed and the stage of lactation of the cow.

Due to its net of hydrogen bonds, water molecules are extremely attracted to one another, leading to a excessive floor stress.

When the dish cleaning soap is added to the milk the cleaning soap acts as a surfactant, lowering the floor stress of the milk in order that the meals colouring can unfold out.

Surfactant (definition): substance comparable to a detergent that, when added to a liquid, reduces its floor stress, thereby rising its spreading and wetting properties. (supply: britannica.com)

On the similar time, the phosphates within the dish cleaning soap are reacting with the fats and protein content material of the milk – the cleaning soap is attempting to seize the globules of fats out of the milk to interrupt them down, similar to dish cleaning soap breaks down the grease when washing up. This interplay causes the fats particles to maneuver round, creating the ensuing swirls of transferring color.