Physical and Chemical Changes

Physical and chemical changes are fundamental concepts in science that explain how substances interact and transform in various ways. Physical changes involve alterations in the state or appearance of a material without changing its chemical composition, such as melting, freezing, or dissolving. Conversely, chemical changes result in the formation of new substances through reactions that alter the chemical properties, like burning or rusting. Understanding these changes is essential for comprehending the behavior of matter in our environment and is foundational for studies in chemistry, physics, and earth sciences.