A circle is a fundamental two-dimensional shape defined as all points at a given distance from a fixed point in a plane. Here's a breakdown of its key

Displacement refers to the straight-line distance and direction an object moves from its starting point to its final point. It's a vector quantity, me

An electron is a subatomic particle with a negative electrical charge that orbits the nucleus of an atom. Electrons are one of the fundamental particl

The heart is a muscular organ in most animals, including humans, that pumps blood through the circulatory system. It is responsible for circulating ox

The boiling point of a substance is the temperature at which it changes from a liquid to a gas at a given pressure. It is the temperature at which the

Gravitational force, also known simply as gravity, is the fundamental force of attraction that exists between all objects with mass. It is one of the

" Brownian motion is the random motion of particles suspended in a fluid (liquid or gas) as they collide with the surrounding molecules. This phenomen

Finger counting is a basic method of counting using one's fingers. It's a widely practiced and instinctive approach, especially among young children o

Salivary glands are exocrine glands in the mouth that produce saliva (spit) and empty it into your mouth through ducts, or small openings. They lubric