Background: Keeping the Difference Between Physical and Chemical Properties, As Well As

Background: Keeping the difference between physical and chemical properties, as well as, changes can be a challenge. This worksheet will help you do this. First, use the book to define the following terms. Vocabulary Word Definition

Physical Property

Physical Change Change in which the identity of the substance does NOT change

Chemical Property

Chemical Change

Part One: Physical or chemical property? Fill in the chart using the vocabulary words or phrases provided. Vocabulary Words Boiling Point Ability to Rust Melting Point Brittleness Reactivity with vinegar Elasticity Flammability Density Transparency Ductility

Each word is used only once. Define the word when done! Chemical Property Definition

Physical Property Definition

Part Two: Physical or Chemical Change? Indicate with a ‘P’ or a ‘C’ which type of change is taking place.

1. ____ glass breaking 7. ____frying an egg 12. ____water 2. ____ hammering 8. ____squeeze orange evaporating wood together for juice 13. ____cutting grass 3. ____ a rusting bicycle 9. ____melting ice 14. ____burning leaves 4. ____ melting butter 10. ____mixing salt and 15. ____fireworks 5. ____separate sand water exploding from gravel 11. ____mixing oil and 16. ____cutting your hair 6. ____bleaching your water 17. ____crushing a can hair 18. ____boiling water

Part Three: If false, correct the underlined portion of the statement so that it is true. 1. A physical change is a change of matter from one form to another without a change in chemical properties. 2. A physical change is a change that occurs when a substance changes composition by forming one or more new substances. 3. Color change is evidence that a chemical change may have occurred. 4. Fizzing or foaming is evidence that a chemical change may have occurred. 5. Production of light is evidence that a physical change may have occurred. 6. A change in odor is evidence that a physical change may have occurred. 7. Production of heat or light is evidence that a chemical change may have occurred. 8. Chemical changes can be reversed by a physical change.

Part Four: Identify each of the following as either a Physical change (P) or a chemical change (C). 1. ______You cut your hair. 2. ______Making a peanut, pretzel, and cereal mixture. 3. ______Baking soda reacts with vinegar and forms a gas. 4. ______A piece of metal is bent in half. 5. ______An aspirin is crushed into a fine powder. 6. ______Copper turned green when exposed to the environment. 7. ______Two clear liquids are mixed and a yellow color forms. 8. ______Baking cookies. 9. ______Diamonds are used to scratch glass. 10. ______A tree burns to form ashes. 11. ______A piece of paper is crumpled up. 12. ______Water freezes to form ice. 13. ______Food spoiling. 14. ______A candle burning. 15. ______A candle melting.