Unit 2, Lesson 2.2 - Properties of Matter (Part Two)
- 1. PROPERTIES OF MATTER (PART 2) (UNIT TWO, LESSON 2.2) BY MARGIELENE D. JUDAN
- 2. LESSON OUTLINE Two Components of Matter Physical Properties Chemical Properties
- 3. MATTER IS ANYTHING THAT OCCUPIES SPACE AND HAS MASS.
- 5. PHYSICAL PROPERTY Without any change in composition Can be classified as intensive and extensive. (ex. Change in phase, cutting
- 6. EXAMPLES OF PHYSICAL PROPERTY Density – amount of mass in a specified place Volume – amount of space an object occupies Boiling Point – temp. in which liquid changes to gas (evaporation) Melting Point – temp. in which solid changes to liquid (melting)
- 7. EXAMPLES OF PHYSICAL PROPERTY Malleability – capability of metal to be hammered into thin sheets (ex. Gold, silver, tin, jewelries) Conductivity – ability to conduct heat and electricity Magnetic property – ability to attract materials made of iron and steel Ductility – ability to be drawn into wires (ex. Copper)
- 8. CHEMICAL PROPERTY Change in composition or chemical formula (ex. Rusting, burning, change in taste)
- 9. PHYSICAL VS CHEMICAL CHANGE
- 10. EXAMPLES
- 12. TAKE NOTE: ALL CHEMICAL REACTIONS ARE CHEMICAL CHANGES!
- 13. ACTIVITY! (1/4 SHEET OF PAPER)
- 14. Write “P” for physical change and “C” for chemical change. (#s 1-7)
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- 22. 8. Which of the following are examples of matter? You may have more than 1 answer/s. A. A dog B. Carbon Dioxide C. Ice Cubes D. A moving car
- 23. 9. Aluminum phosphate has a density of 2.566 g/cm3. A. Physical property B. Chemical property C. Physical change D. Chemical change
- 24. 10. Sunlight is a matter. A. True B. False C. Cannot be determined
- 25. ANSWERS!
- 26. 1. Rusting is a chemical change.
- 27. 2. Melting is a physical change.
- 28. 3. Freezing is a physical change.
- 29. 4. Burning is a chemical change.
- 30. 5. Cutting paper is a physical change.
- 31. 6. Rotting is a chemical change.
- 32. 7. Forming air bubbles (ex. yeast) is a chemical change.
- 33. 8. Which of the following are examples of matter? You may have more than 1 answer/s. Answer: ALL OF THE ABOVE! A. A dog B. Carbon Dioxide C. Ice Cubes D. A moving car
- 34. 9. Aluminum phosphate has a density of 2.566 g/cm3. A. Physical property
- 35. 10. Sunlight is a matter. B. False. Sunlight has no mass and doesn’t take up any space (volume). Sunlight is a form of energy.
- 36. Assignment: Answer Laboratory 1.3 at home (Take-Home Task).