Question

Name Period Date Workbook Activity Chapter 5. Lesson Physical and Chemical Changes Directions Read each change listed in items through 15. Write each change in the table. If it is a physical change, write the change in the left column. If it is a chemical change, write the change in the right column. Physical Change Chemical Change 1. scrambling eggs in a bowl 8. paper burning 2. a silver spoon tarnishing 9. picking tomatoes from a plant 3. a puddle drying up 10. mixing baking soda and vinegar 4. chopping onions 11. snow falling 5. a copper roof turning green 12. painting a room 6. water drops forming on the outside 13. car-exhaust fumes mixing with water of a glass 14. adding a drink powder to water 7. bread baking 15. bike spokes rusting Directions How are physical changes and chemical changes different? Write your answer below. Physica DAGS Publishing. Permission is granted to reproduce for classroom use only.

Answer 1

The Physical change is the change where the substance or matter only change their shape or size or State of substance but nothing new compound or substance is formed chemical composition remain same while in Chemical change reaction happened in reactant as result new product is formed where the new chemical composition is observed. This is the result of a chemical reaction. By this information, we can separate the list into physical and chemical

Physical

1,3,4,6,9,11,12,14

Chemical changes

2,5,7,8,10,13,15

By certain physical and chemical changes indicate which kind of change e.g if the colour, odour, absorption of heat, gas etc. Produces then this indicates chemical changes if not then physical.

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