KMP Physical and Chemical Change PDF

Title: Physical and chemical change Do now: Essential routines ★ Equipment out on desk ★ Title and date in book on the top line of a new page (or line under last lessons work) ★ Be ready and on the DO NOW task.  On the next slide I am going to show...

Title: Physical and chemical change Do now: Essential routines ★ Equipment out on desk ★ Title and date in book on the top line of a new page (or line under last lessons work) ★ Be ready and on the DO NOW task.  On the next slide I am going to show you a list of Reversible and Irreversible changes. Which ones are which?  Using a fire extinguisher Baking a cake Driving a car Burning wood (combusting fuel) Boiling Water Bomb Fireworks Glowsticks Handwarmers Dissolving salt Melting ice cubes Mixing cooking ingredients  Materials can change in different ways. Melting is an example of a physical change.  Burning is an example of a chemical change. Chemical changes are harder to undo. Often chemical changes cause a change in colour. ⦿ You are going to do a practical to investigate chemical and physical changes. ⦿ You are going to heat two substances and make observations of what you can see and hear. ⦿ You need to write your observations on the sheet and sketch the equipment you used. What we are looking for and thinking about…. ⦿ Do you think ⦿ Was heating the heating the ice copper carbonate a was a chemical or chemical or physical change? physical change? Reversible or irreversible?  What we are looking for and thinking about…. ⦿Do you think heating the ⦿ Was heating the copper carbonate ice was a chemical or a chemical or physical change? physical change? ⦿ It was a chemical change because we saw a colour change. ⦿ It was a physical change because it is reversible. ⦿ This reaction is irreversible. Can you complete these 4 tasks to show your understanding? Task 1 Word fill Task 2 Example Task 3 Observations Task 4 Using diagrams  New materials formed that are different to the starting materials Cannot easily be undone. Can easily be undone. Bubbles given off Chemical Change Physical Change Change in state Stand up Sit down Colour change Heat or light given off No new material is formed.  Physical Change Chemical Change ⦿ Can easily be undone. ⦿ Cannot easily be undone. ⦿ No new material is ⦿ New materials formed that are different to formed. the starting materials ⦿ Change in state ⦿ Colour change ⦿ Bubbles given off ⦿ Heat or light given off Consider today's lesson for a moment Who could you nominate for a credit? Be ready to JUSTIFY why and what it was that observed. Template icons to use Explore Thinking Communication Social Self Management You have…… minutes!