Q1 M1.pptx intro envi science
- 1. Mrs. Jhenas Cyrill A. Abay Science Teacher
- 2. How do you feel today?
- 3. Distinguish mixtures from substances based on a set of properties.
- 4. 1. What are the two (2) classes of matter? A. Atom and molecule B. Plant and animal cells C. Element and compound D. Substance and mixture
- 5. 2. Which is true regarding air? A. Compound of gases B. Element of gases C. Mixture of gases D. Substances of gases
- 6. 3. What is the difference between a substance and a mixture? A. Substance can be separated while mixture cannot be separated. B. Substance has many components while mixture has one only. C. Substance is heterogeneous while mixture is homogeneous. D. Substance is pure while mixture is impure.
- 7. 4. To separate salt from water in a seawater mixture, what process is used? A. Condensation B. Distillation C. Evaporation D. Filtration
- 8. 5. Which of the following is a property of mixture? A. It has a definite composition. B. It consists of a single phase. C. It has a heterogeneous composition. D. It can be chemically separated into its components.
- 9. 6. Which of the following is a physical appearance of a substance? A. Complicated B. Homogeneous C. Heterogeneous D. Non-uniform
- 10. 7. Which one is the best way to determine whether an unknown sample is a substance or a mixture? A. knowing its density. B. tasting the given sample C. observing its physical appearance. D. testing its melting and boiling point
- 11. 8. All are techniques which help to separate components of mixtures. Which of these is NOT? A. Condensation B. Distillation C. Evaporation D. Filtration
- 12. 9. Which of the following is a heterogeneous mixture? A. Air B. Soft drink C. Oil in water D. Stainless steel
- 13. 10. What is the best way to use in separating iron parts from a mixture? A. Filter paper B. Magnet C. Water D. Spoon
- 14. Read carefully this poem and discover the differences between substances and mixtures Answer the guide questions after.
- 15. I AM SUBSTANCE, I AM MIXTURE By Wilfredo D. Bartolo, Jr Matter has two broad classes Mixtures and substances Each one with differences Let us start with their appearances. Homogeneous or heterogeneous Telling a substance from a mixture can be used When substances are all homogeneous Mixtures can be homo or heterogeneous.
- 16. Next way to distinguish is through separating technique Mixtures can be separated easy and quick Through evaporation, distillation and filtration But not substances due to chemical combination. Substances and mixtures behave differently, During boiling and melting most especially Boiling point of substance is fixed while mixture is not Substance melts completely but mixture does not I am substance, I am mixture Two worlds apart
- 17. Guide Questions: 1. What is a mixture? 2. What are the sets of properties of mixtures?
- 18. Guide Questions: 3. Tabulate your answer about the properties of matter.
- 20. Which picture shows the following: 1.Sieving? 2.Evaporation? 3.Decantation? 4.Filtration? 5.Magnetism? 6.Distillation?
- 21. Sieving- separating wanted elements from unwanted material using a screen such as a woven mesh or net or perforated sheet material. Evaporation- separates the soluble solid from the liquid component of the solution by evaporating the liquid substance.
- 22. Decantation- the large particles of insoluble solid are separated from the liquid mixture Filtration- is the separation of an insoluble solid from a liquid mixture using filter paper
- 23. Magnetism- the use of magnet can be done to separate the metallic materials from nonmetallic materials
- 24. Distillation-the process of heating the liquid to form vapors, and then condensing the vapors in order to get back the liquid. -the liquid that is obtained by performing the condensation of vapor is called the distillate.
- 25. Read and analyze the given data and scenario. Answer the guide questions after.
- 26. Read and analyze the given data and scenario. Answer the guide questions after.
- 27. Read and analyze the given data and scenario. Answer the guide questions after.
- 29. 1. Which liquid is a pure substance? Samples Temperature Observation while heating Liquid A Liquid B
- 31. 2. Which solid sample is a pure substance? Samples Appearance Observation while melting Solid A Solid B
- 32. Complete the activity below.
- 35. A mixture is a physical combination of two or more substances in any proportion. They may be classified into homogeneous or heterogeneous depending on the size of components present on it. There are many methods in separating the components of a mixture such as mechanical separation, evaporation, filtration, decantation, and distillation.
- 36. Appearance A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases
- 37. Color A mixture may have uniform or different in color.
- 38. Separating Technique It can be separated into other substances by physical methods.
- 39. Boiling and Melting Point The boiling point and the melting point of the mixture depends upon the characteristic of the constituents. The components of a mixture each keep their original properties. Some portions dont melt completely/smoothly.
- 40. PURE SUBSTANCE MATTER MIXTURE What is it? Can we separate the components of a mixture? Properties? Appearance and Color Boiling and Melting Point
- 42. Is it a Pure Substance or a Mixture?
- 43. Identify at least five (5) examples of mixtures found in nature, in the supermarket, grocery store and even at home. Use the table below to explain your answer based on appearance, separating technique, boiling point and melting point.
- 44. ASSESSMENT A. Answer your Post Assessment pp. 15 16. (#s 1-10 only) B. Short Answer Complete the table: Properties of Mixtures Appearance Color Separating Technique Boiling Point Melting Point
- 45. ASSIGNMENT Study for the Additional Activity Tomorrow.