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Physical and Chemical Changes

Teach students to differentiate between physical and chemical changes in matter through engaging activities. Identify characteristics of each change type and classify examples accordingly. Improve understanding of matter's properties and transformation processes.

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Physical and Chemical Changes

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  1. Physical and Chemical Changes A Write On Activity

  2. Objective: Chemical/Physical Change: Differentiate • The learner will be able to (ESSENTIAL) distinguish between a physical and chemical change.

  3. Matter • Matter is everywhere. • Matter is anything that takes up space and has mass. • Matter is constantly experiencing both chemical and physical changes.

  4. Physical Change • Physical changes occur when matter changes its property but not its chemical nature. • Physical property changes could include a change in: texture, shape, size, color, change of state, volume, mass, weight, and density.

  5. Physical Change

  6. Chemical Change • Chemical changes are changes matter undergoes when it becomes new or different matter. A new substance is formed. • To identify a chemical change look for signs such as color change, odor, bubbling and fizzing, light production, smoke, and presence of heat.

  7. Chemical Change • A chemical change occurs when fireworks are used. Fireworks are made of metals such as magnesium and copper. These change chemically as they light up the sky.

  8. Is it a chemical or physical change? • Sugar dissolving in tea • Chemical Change • Physical Change

  9. OOPS! Did it change size, color, shape (Physical Change)? or Did it become different matter (Chemical Change)?

  10. Correct!

  11. Is it a chemical or physical change? • Logs burning • Chemical Change • Physical Change

  12. OOPS! Did it change size, color, shape (Physical Change)? or Did it become different matter (Chemical Change)?

  13. Correct!

  14. Is it a chemical or physical change? • Breaking water up by separating it into hydrogen and oxygen • Chemical Change • Physical Change

  15. OOPS! Did it change size, color, shape (Physical Change)? or Did it become different matter (Chemical Change)?

  16. Correct!

  17. Is it a chemical or physical change? • Cutting paper • Chemical Change • Physical Change

  18. OOPS! Did it change size, color, shape (Physical Change)? or Did it become different matter (Chemical Change)?

  19. Correct!

  20. Is it a chemical or physical change? • Crushing an aspirin • Chemical Change • Physical Change

  21. OOPS! Did it change size, color, shape (Physical Change)? or Did it become different matter (Chemical Change)?

  22. Correct!

  23. Is it a chemical or physical change? • Metal rusting • Chemical Change • Physical Change

  24. OOPS! Did it change size, color, shape (Physical Change)? or Did it become different matter (Chemical Change)?

  25. Correct!

  26. Is it a chemical or physical change? • Lighter fluid burining • Chemical Change • Physical Change

  27. OOPS! Did it change size, color, shape (Physical Change)? or Did it become different matter (Chemical Change)?

  28. Correct!

  29. Is it a chemical or physical change? • An egg rotting • Chemical Change • Physical Change

  30. OOPS! Did it change size, color, shape (Physical Change)? or Did it become different matter (Chemical Change)?

  31. Correct!

  32. Is it a chemical or physical change? • An egg breaking • Chemical Change • Physical Change

  33. OOPS! Did it change size, color, shape (Physical Change)? or Did it become different matter (Chemical Change)?

  34. Correct!

  35. Writing Activity • On the back of your note sheet please place the following pieces of information in the correct category.

  36. Burning wood • Crumpling a sheet of aluminum foil • Mixing acid and base • Digesting food • Cooking an egg • Boiling water • Evaporating alcohol • Shredding paper • Melting an ice cube • Heating sugar to form caramel • Baking a cake • Rusting of iron • Casting silver in a mold • Breaking a bottle • Souring milk

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