Gravity is the way mass and energy affect motion through space and time. In everyday conditions, Newton’s law describes gravity as an attractive force between masses; Einstein’s general relativity gives a deeper description in which mass and energy curve spacetime, and freely moving objects follow paths through that…
A scientific theory is one of the most misunderstood phrases in modern language. In everyday talk, “theory” can mean a hunch. In science, a theory is a carefully tested explanation that brings many observations together into a coherent and reliable structure. It is built to be questioned, stressed,…
In science, observation and experiment are often mentioned together, yet they do different jobs. Observation captures what the world is doing, using careful measurement and clear records. Experiment changes something on purpose to learn how a system responds. Understanding the difference helps readers judge studies, interpret headlines, and…
The scientific method is a practical way to learn about the world by testing ideas against evidence. It is not a magic recipe, and it is not reserved for laboratories. It is a set of habits—clear questions, careful measurements, and honest checks—that helps separate what seems true from…
Science is a method for building reliable knowledge about the natural world—from cells and storms to planets and materials—by using evidence and disciplined reasoning. It is not a single “magic procedure,” and it is not a collection of facts frozen in time. Science is a self-correcting practice: ideas…