Transcript of "5th Grade-Ch. 12 Lesson 1 What are chemical changes"
Ch. 12 Lesson 1 What are chemical changes?
Activity- Is it a chemical change or physical change? Ice cube melting Water on stove Mix Alka-Seltzer with water Burning candle Mix baking soda with vinegar Chemical or physical change? Observations (using your senses) Demonstration
matter undergoes physical changes chemical changes
physical change <ul><li>material keeps its identity </li></ul><ul><li>ex: changes in size, shape, phase of matter </li></ul>