Quantum science is the study of the smallest particles in the universe, such as atoms and subatomic particles like electrons and photons. It explores how these particles behave and interact, often in ways that differ from our everyday experiences. This field of science is fundamental to understanding the nature of matter and energy. One of the key principles of quantum science is quantum superposition, which allows particles to exist in multiple states at once until measured. Another important concept is quantum entanglement, where particles become linked, so the state of one instantly affects the state of another, regardless of distance.