Written by Meher Gupta, a grade 6 student (this is an archived post. Meher is now in grade 8)

Water is one of the most essential things a person needs; 60-70% of our body is water. It keeps us hydrated, helps in digestion, regulates our body temperature, flushes out waste, and cushions the brain, spinal cord, and other sensitive tissues.

Oil is an important source of energy and comes under the energy-giving food and nutrient: Fats. Fats are good for our bodies; however, too much of this nutrient leads to many diseases like diabetes and heart disease.

They are good for our body as they help absorb vitamins A, D, E, and K ( so-called fat-soluble vitamins). Fats insulate our bodies, cushion our muscles, and keep us warm.

Water and oil are immiscible ( they do not combine together)

This is because water has polar molecules: its structure has one positive charge and one negative charge. Water molecules stick together because the positive charge is attracted to the negative charge. The structure of Oil is non-polar.

It is evenly balanced instead of having one positive and one negative end. This means, oil molecules are more attracted to other oil molecules than water, and the water molecules are more attracted to each other than oil. This is why water and oil don’t mix together.

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