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Physical and Chemical Changes

Physical and Chemical Changes. A Write On Activity. Objective: Chemical/Physical Change: Differentiate. The learner will be able to distinguish between a physical and chemical change. Matter. Matter is everywhere. Matter is anything that takes up space and has mass.

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

  5. Physical Change

  6. Chemical Change • Chemical changes are changes matter undergoes when it becomes new or different matter. • To identify a chemical change look for 3 signs (Power of 3).

  7. Signs of a Chemical Change • color change • bubbling and fizzing (gas) • light production • smoke, and presence of heat • rusting • change in mass • odor • decomposing • digestion

  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 • Physical Change • Chemical 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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