A simple experiment on oil and water separation: using different densities to separate oil and water
What is being done here is a small experiment to separate oil and water. The materials that need to be prepared in advance mainly include food coloring, food oil and water.
Prepare two glass cups in advance, pour water into one glass cup, and then drop some pigment.
It is best to choose a pigment that is very different from the color of the edible oil.
Next, slowly pour the cooking oil in the other glass into the water.
Since the weight of oil is lighter than the weight of water, the oil will float directly on the water.
After sufficient stirring, the color of the oil-water mixture will become particularly blurry.
Leave it quietly for about 15 minutes, and the oil and water will be completely separated.
The lighter oil is on top, and the heavier oil is on top. Water is below.
Do you think such an experiment is very interesting?
Students often encounter such small experiments in chemistry or physics courses.
Although these experiments are relatively simple, they can help students better grasp the knowledge in the textbooks, and even help students remember the knowledge in the books forever.
