Introduction SC/BC Objective Indicator Content Problem Quit Homogeneous and Heterogeneous Mixture

Introduction SC/BC Objective Indicator Content Problem Quit Standard of Competency 3. Understanding the element, compound, and mixture. Basic Competency 3.1. Explain the definition of element, compound, and mixture.

Introduction SC/BC Objective Indicator Content Problem Quit Through simple experiment, students can explain the definition of mixture. Through simple experiment, students can explain distinguish between homogenous and heterogeneous mixture.

Introduction SC/BC Objective Indicator Content Problem Quit Based on the examples in surrounding environment, students can explain there are three types of homogenous mixture, specifically homogenous mixture in gas phase (such as air), liquid phase (such as alcohol solution in water), and solid phase (such as 18 carat gold ring).

Introduction SC/BC Objective Indicator Content Problem Quit Based on the types of atom which include in element and compound, students can give reason that shows element and compound are pure substances. Based on the types of which include in mixture, students can give a reason that shows mixture is not a pure substance.

Introduction SC/BC Objective Indicator Content Problem Quit Mention the examples of mixture. Mention the definition of mixture. Mention the definition of homogenous mixture. Provide the examples of homogenous mixture. Mention the definition of heterogeneous mixture. Provide the examples of heterogeneous mixture. Provide the example of homogenous mixture in gas phase.

Introduction SC/BC Objective Indicator Content Problem Quit Provide the example of homogenous mixture in liquid phase. Provide the example of homogenous mixture in solid phase. Provide a reason that element is a pure substance. Provide a reason that compound is a pure substance. Provide a reason that mixture is not a pure substance.

Introduction SC/BC Objective Indicator Content Problem Quit MIXTURE Definition A substance which consists of combination of some other substances which are different kind with inconsistant ratio Example Fried rice, Cake and Salt solution

Introduction SC/BC Objective Indicator Content Problem Quit HOMOGENEOUS MIXTURE Definition A mixture having a uniform composition. It has no boundary layer between its components, so the component particles of the mixture cannot be differentiated anymore

Introduction SC/BC Objective Indicator Content Problem Quit HOMOGENEOUS MIXTURE Example: Salt solution Sugar solution Syrup Soft drink Gas in gas

Introduction SC/BC Objective Indicator Content Problem Quit HETEROGENEOUS MIXTURE Definition A mixture of two or more substance in which the substances can still be differentiated from each other.

Introduction SC/BC Objective Indicator Content Problem Quit TYPE OF HETEROGENEOUS MIXTURE Suspension A heteregenous mixture in which the boundary layer between its components is still clear. Example: Oil and water, iron and sand, iron powder and water

Introduction SC/BC Objective Indicator Content Problem Quit Colloid A heteregenous mixture in which the boundary layer between its can only be differentiated by helping an ultramicroscope. Example: Milk, smoke, fog, and jelly

Introduction SC/BC Objective Indicator Content Problem Quit Refer to your chemistry book! Practice to solve the problems in Comprehension Exercise and Evaluation Page