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OUR LESSON

Learn to differentiate between physical and chemical changes in matter through engaging activities and discussions. Identify various examples and understand the transformations matter can undergo. Discover the key characteristics and indicators of each change type.

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OUR LESSON

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  1. Chemical Change OUR LESSON Physical Change

  2. Objective: Tell the difference between physical and chemical change.

  3. Objective: Identify the changes a matter undergoes

  4. Group Achievements

  5. Complete the Think It Through silently. • Move around the room in groups to each station. • Observe the changes that is happening in the materials. • Choose from Physical Change or Chemical Change. THINKSHEET

  6. #1 Cup of Ice, Cup of Water #2 Rust on Metal Object #3 Small plant, Larger plant (same type of plant #4 Moldy Bread in bag #5 Curdled milk #6 Water, Colored Water #7 Candle melting #8 Digestion Physical Change THINKSHEET Chemical Change Chemical Change Chemical Change Chemical Change Physical Change Physical Change Chemical Change

  7. Group Achievements

  8. Each group will re-arranged the jumbled phrases into a correct idea about physical and chemical change. • The group will post this to a manila paper and present to the class. Activity 2: Completing the Idea

  9. ACTIVITY 2 the form of a substance to another substance a physical change alters but does not change it when it becomes new or different matter Chemical changes are changes matter undergoes

  10. ACTIVITY 2 the form of a substance to another substance a physical change alters but does not change it

  11. ACTIVITY 2 when it becomes new or different matter Chemical changes are changes matter undergoes

  12. Group Achievements

  13. ? Activity 3: Physical or Chemical Tell what change is happening in the picture.

  14. Physical change • Cutting paper?

  15. Lighter fluid burning Chemical Change

  16. Physical Change • Crushing an tablets

  17. Sawing wood? Physical Change

  18. Precipitation Chemical Change

  19. Chemical Chnage 3. Gas Production

  20. Chemical Change • Logs burning

  21. Chemical Change 2. Color Change

  22. CHEMICAL CHANGE • fireworks.

  23. Group Achievements

  24. Based on the activity that you had performed, who can now discuss the difference between physical and chemical change? Generalization?

  25. Physicalchange • A physical change alters the form of a substance, but does not change it to another substance. • It changes shape or size • It dissolves. • It changes phase (freezes, boils, evaporates, condenses) • Example: Making Orange Juice

  26. Chemical Change • Chemical changes are changes matter undergoes when it becomes new or different matter. • It burns • Temperature changes without heating/cooling • It bubbles (makes a gas) • It changes color • It forms a precipitate

  27. When a substance undergoes a chemical change, it is changed into a different substance with different properties. • To identify a chemical change look for signs such as color change, bubbling and fizzing, light production, smoke, and presence of heat. • Example: Baking a Cake

  28. Who among you here can give other examples of physical and chemical changes of matter that are happening in community?

  29. Identify the Change? • Tears up paper? Physical change • Mixes salt and water? Physical change • Burns paper? Chemical change • Evaporates salt water? Physical change • Mixes vinegar and baking soda? Chemical change

  30. ASSIGNMENT • Research on the phase changes of matter and differentiate one from the other.

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