Why don’t water and oil mix? Kuya Kim explains

Ever wondered why water and oil do not mix?

According to Kuya Kim on “24 Oras” Tuesday, this is because water molecules are polar molecules. A polar molecule has an uneven distribution of charge, with a positive charge at one end and a negative charge at the other. Water molecules stick together when the positively charged end of one molecule sticks to the negatively charged end of another, and vice versa.

Oil, on the other hand, is a non-polar molecule, meaning that its charge is evenly balanced, instead of having positive and negative ends. Oil molecules are repelled by water molecules, hence oil does not mix with water.

According to Kuya Kim, the first kind of oil was discovered in China and Japan during 3,000 BC. This is soybean oil. Olive oil, meanwhile, was first used by Southern Europeans during 2,000 to 4,000 BC.

As for cooking oil, it was invented by humans by extracting from nuts, seeds, and plants.

The next time you see patches of oil on water, you now know why thanks to #KuyaKimAnoNa! — Franchesca Viernes/BM, GMA News