SCIENCE 9- SECOND QUARTER

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SECOND QUARTER

 OBJECTIVES:

At the end of the second quarter, the students are expected to:

  1. demonstrate how the atoms combine with other atoms by transferring or by sharing electrons;
  2. explain the formation of ionic and covalent bonds;
  3. present data in poster, chart, or multimedia the uses of compounds based on their properties;
  4. represent valence electrons as Lewis dot symbols;
  5. write the formulas and symbols of elements and compounds;
  6. use the mole concept to express mass of substances;
  7. determine the percentage composition of a compound given its chemical formula and vice versa;
  8. explain how the structure of carbon atom affects the type of bonds it forms;
  9. recognize the general classes and uses of organic compounds.

CONTENT:

I. MATTER

A:  Chemical Bonding

         1. Development of Atomic Models

         2.  The Octet Rule

                   a. Electron Configuration and Valence Electrons

                   b. Lewis-Electron Dot Structure

         3.  Ionic Bond

                   a. Ionic Charges

                   b. Formation of Ionic Compounds

                   c. Chemical Formula and Name of Ionic Compound

                   d. Importance of Ions and Ionic Compounds

         4.  Covalent Bond

                  a. Formation of Covalent Compounds

                  b. Properties of Ionic and Covalent Compounds

         5.  Metallic Bonds

             a. Metallic Properties

B.  The Variety of Carbon Compounds

          1.  The Carbon Atom

                    a. Carbon Structure

                    b.  Organic VS Inorganic

          2.  Hydrocarbons

                    a. Isomerism

                    b. Classes of Hydrocarbons

                         (1)  Alkanes

                         (2)   Alkenes

                         (3)   Alkynes

                        (4)  Aromatic Hydrocarbons

             c.  Uses of Hydrocarbons

             d.  Effects of Hydrocarbons to Health and Environment

          C.  Mole Concept

                  1.  Mole and Mass Relationship

                               a.  The Avogadro’s Number

                               b.  Molar Mass

                               c.  Formula Mass and Molecular Mass

               d. Percentage-by-Mass Composition of a Compound

CRITERIA FOR EVALUATION:  

  1.  Written works————-  40%                                        
  2. Performance task———- 40%                                    
  3.  Quarterly Assessment—–20%                                

                   Total ———————– 100%

SUBJECT TEACHER: MA. REGINA B. ESCLEVA

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