Sense of smell, taste, hearing and touch

The sense of Smell

One important factor to note about our sense of smell is that there has to be some very tiny particles called molecules from whatever we smell. 

Think about cooking food or burning a candle, or spraying a perfume: all these release very tiny molecules that our nose can detect. 

The sense of taste

Taste receptors are on the tongue. They are small bumps  called taste buds. There are four basic flavours. 

The sense of Hearing

The sense of touch