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Physical and Chemical Changes

Physical and Chemical Changes. A Write On Activity. Objective: Chemical/Physical Change: Differentiate. Essential Questions. How can matter be changed? How can I tell if matter has undergone a physical or chemical change?. Matter. Matter is everywhere.

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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

  3. Essential Questions How can matter be changed? How can I tell if matter has undergone a physical or chemical change?

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

  5. 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, odor, volume, mass, weight, and density.

  6. Physical Change

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

  8. 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.

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

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

  11. Correct!

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

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

  14. Correct!

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

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

  17. Correct!

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

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

  20. Correct!

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

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

  23. Correct!

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

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

  26. Correct!

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

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

  29. Correct!

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

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

  32. Correct!

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

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

  35. Correct!

  36. Writing Activity • Write a paragraph about the difference between a chemical and physical change. Give examples of each.

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