<p> Name: ______</p><p>Science 6 - ______Date: ______</p><p>Physical and Chemical Changes Lab VOCABULARY: Write the definition of both words.</p><p>Physical Change -______</p><p>Chemical Change -______</p><p>Is the Describe the physical CHANGE Why? Explain your Object and chemical Action physical or answer. properties. chemical? Paper and Crayon 1.</p><p>Fruit 2.</p><p>Ammonium Nitrate with 3. Water</p><p>Marshmallow</p><p>4.</p><p>Salt and Water 5.</p><p>Magnesium Strip 6.</p><p>Crackers</p><p>7. Clear Liquid</p><p>8.</p><p>Mystery Powder 9.</p><p>2 Solutions</p><p>10.</p><p>More Practice Identifying Changes You have learned that some changes affect the composition of matter, while other changes do not. You know that a physical change changes the appearance of a substance, but does not affect its chemical properties. A chemical change, however, produces a new substance. Use what you have learned about physical and chemical changes to identify the types of changes taking place in each example below. Read each sentence and write P for the physical changes and C for the chemical changes.</p><p>______1. When baking soda is added to vinegar, bubbling occurs as carbon dioxide forms. ______2. Water evaporates from the ocean. ______3. The yolk of an egg, which contains sulfur, causes tarnish to form on silver. ______4. Ice on a lake melts to become water in the lake. ______5. When charcoal in the fire several hours, it turns to ash. ______6. The student needed to sharpen his pencil. ______7. A battery makes electricity to turn on a flashlight. ______8. A bicycle left out in the rain for several weeks will rust. ______9. You cut cloth into tiny pieces. ______10. You bake cookies for your friends. ______11. Wood is placed into the fireplace to burn. ______12. The silver vase started tarnishing. ______13. I wanted to carve a bird out of the ice. ______14. The milk turned sour immediately after the expiration date. ______15. I put some sugar in my coffee. ______16. I decided I needed to get a haircut. Directions: Look at the picture and determine whether it is a physical or a chemical change.</p><p>17. 18. 19.</p><p>20. 21. 22.</p>