Natural Magnetism: Magnetic Field and Weak Field [Alteration of Day&Night in a Day]

2.5.3 - Forms of Understanding - The Sciences, like the systems of mathematics, have their own concepts, often interconnected through theories, and are attempts to describe and explain the natural world. Concepts include atom, magnetic field, cell, and neuron. Scientific inquiry involves observation and experimentation to validate predictions made by theory (hypotheses), which may be aided by instruments and controls. Formalisation into theory and model building can sometimes involve mathematics, but it is only with reference to observations and not to mathematical accuracy that truth is tested. The attempt is to furnish a narrative that in some way 'corresponds? to reality. (National Curriculum Framework, 2005, p - 27, NCERT - India)