The theory of plate tectonics explains that the Earth’s lithosphere comprises enormous tectonic plates.

Gravity is a force that draws things towards each other. It is an invisible force

The theory of evolution explains how living organisms change certain features to adjust to their

Creatures such as insects, fish, amphibians and reptiles cannot adjust their body temperature according to

Sleep plays a vital role in enhancing the functions of the brain and helping the

The tongue is a muscle that plays an important role in helping humans speak, taste

Aeroplanes are an important mode of transportation, allowing people to travel to places all around

The human brain is the organ that controls the body’s movements and thinking and helps

A dental cavity is a hole that forms in a tooth when the outer coating

Echolocation is a method in which animals make use of sound waves to understand their