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Lesson Plan of Properties and uses of Alkali s General Science Grade VIII Students’ Learning Outcomes ·          Define the term alkalies in their own words. ·          Describe the properties of alkali s. ·          Explain the uses of alkali s in daily life. Information for Teachers ·          The word alkali comes from the Arabic word for ashes. ·          Alkali is now used as another word base. ·          Alkali mater reacts with water. ·          A chemical substance which gives hydroxide ions (OH) in water is called alkali. ·          Alkali s have bitter taste & turn red litmus blue. ·          Alkali have soapy feel. ·          Alkali dissolves in water to form solutions which conduct electricity. ·          Alkali s react with acids to form salt & water (neutralization). ·          They are good electrical conductors in solutions. They have pH more than 7. ·          Household cleaner: NH4OH to remove grease from window.

Lesson Plan of Properties and Uses of Acids (Acids, Alkalies and Salts) General Science Grade VIII Students’ Learning Outcomes ·          Define acid in its own words. ·          Describe the properties of acids. ·          Explain the uses of acids in daily life. Information for Teachers ·          Acids are the chemical substances which give H’ ion in aqueous solution. ·          Acids have sour taste. ·          Hydroelectric acid is found in our stomach. ·            Citric acid in vitamin c. ·          They change blue litmus paper to red. ·          Acids react with bases to form salt and water (neutralization) ·          Acidic solutions are good electrical conductors. Due to ionization in solution they form free mobile ions which conduct electricity. ·          Acids are used in the production of metal, paper, paint, detergent and fertilizers. ·          Nitrite acid is used to make fertilizers like ammonium nitrate. Sulfuric acid is