Objectives (5 - 7 minutes)

1. Understand the difference between substances and mixtures, identifying the characteristics and properties that distinguish them.

   • Define and distinguish pure substances and mixtures.
   • Identify examples of pure substances and mixtures in everyday life.
   • Understand the types of mixtures (homogeneous and heterogeneous) and their properties.

2. Ability to classify different materials as pure substances or mixtures, and if mixtures, as homogeneous or heterogeneous.

   • Develop observation and reasoning skills to identify the characteristics that allow for proper classification.
   • Apply the acquired knowledge in solving exercises and practical problems.

3. Learn about techniques for separating mixtures.

   • Identify different techniques for separating mixtures.
   • Understand the practical applications of these techniques in daily life.
   • Understand the process of separating mixtures and its importance in industry and everyday life.

Secondary Objectives:

• Develop critical thinking and analytical skills, relating the learned content to everyday situations.
• Stimulate curiosity and interest in chemistry, demonstrating the applicability and relevance of studying substances and mixtures.