Content :

 Acids and Bases [Gr.7]

Performance Standards :

 interprets properly product labels of common acids and bases for safety and cost benefits.
 practices safe ways of handling acids and bases by using protective clothing and safety gears.

Learning Competencies :

 recognizes common acids and bases
 recognizes the concept of pH.
 investigates properties of acids and bases using natural indicators such as eggplant skin, mayana leaves or violet- colored camote leaves.
 investigates action of acids on metals and building materials.
 investigates action of bases on materials.
 practices safe handling of acids and bases.
 investigates neutralization of acids and bases.