They may be classified as polar and non-polar. A non-polar compound occurs when there is an equal sharing of electrons between two different atoms. Examples of household non-polar compounds include fats, oil and petrol/gasoline.Therefore (per the oil and water rule of thumb), most non-polar molecules are water insoluble (hydrophobic) at room temperature.hen comparing a polar and non-polar molecule with similar molar masses, the polar molecule generally has a higher boiling point, because of the dipole-dipole interaction between their molecules. The most common form of such an interaction is the hydrogen bond, which is also known as the H-bond.
The Outer Ear. Parts of the Ear: Outer Ear | Middle Ear | Inner Ear. The outer ear consists of the pinna, or auricle, and the ear canal (external auditory meatus). The pinna â the part of the ear that we see on each side of our heads â is made of cartilage and soft tissue so that it keeps a particular shape but is also flexible. The pinna serves as a collector of sound vibrations around us and guides the vibrations into the ear canal.
1 The cartilage in your nose and ears is flexible, unlike the hard bone that makes up your kneecap. 2  Share what you've learned with a friend or family member and have them do the same experiment.