Review key terms used to describe physical properties of matter.
Define and discuss a definition relating to chemical properties of matter, and discuss the term chemical reaction. Use examples to illustrate the definition of chemical properties by listing some chemical reactions and discussing the differences.
Prepare a solution of sodium chloride and add a few drops of silver nitrate solution. Have Joshua describe the chemical reaction observed. Define the term precipitate formation, write the chemical reaction on the board using symbols and names, and discuss the importance of the silver chloride precipitate formed to the field of photography,