Changes of Matter 2023*

Master physical vs. chemical changes with our 8th-grade science worksheet!

Matching Physical Change Does not change the substance's identity Chemical Composition The chemical arrangement of the substance Chemical Change Does change the identity of the substance Which of the following statements BEST describes a physical change? A gas is given off when a substance burns. Dissolving blue dye into water. A battery powered flashlight is on. A new substance formed. What is the BEST way to tell if a chemical change has occurred? Color Change Precipitate Formation State Change Volume Change Classifying Label each image as either a Physical Change or Chemical Change. Physical Change Chemical Change Classify the following changes aschemicalorphysical. Chemical (8) Burning coal to generate electricity. Bike chain rusts. Food scraps, leaves and grass clippings in a compost pile turn into soil. Hair growing. Using pesticides and fertilizers. A silver spoon tarnishes. A plant performs photosynthesis. A banana begins to rot and decompose. Physical (8) Sugar is dissolved into tea to make it sweet tea. A baseball shatters your neighbor's window. A boulder breaks due to ice wedging. A pot hole forms in the road. Turning over a compost pile. Pulling weeds. Combing hair. River dissolves minerals (salt) as it flows over the land and is deposited into the ocean. Classifying Label each image as either a Physical Change or Chemical Change. Physical Change Signs of Changes in Matter Sort the following as either a Sign of a Chemical Change or Sign of a Physical Change. Sign of a Chemical Change (9) Light was produced Odor Released Precipitate Formation Gas Produced Heat Released Sound Produced Change in Texture Color Change Electricity Released Sign of a Physical Change (5) State Change Change in Shape Change in Volume Identity is the same Reversible Select from the provided text bank to fill in the blanks.(Be sure to scroll down in the word bank option.) Chemical changes form a new substance; with characteristic properties that are different than the original substance; while physical changes do not change the identity or composition of the substance.Chemical changes create new compounds that make it impossible to reverse. Whereas, physical changes are generally easy to reverse, because it is only changing the appearance of the substance, not its identity or composition. Word Search Extra Credit:To mark a word click its first letter then click its last. PRECIPITATE ELECTRICITY COMPOSITION REVERSIBLE SUBSTANCE PHYSICAL IDENTITY CHEMICAL THERMAL VOLUME