Detailed Lesson Plan
(Grade 7) 1. Objectives
After providing the necessary materials, each student; 1.1 investigates the different types of solutions:
-unsaturated
-saturated
-supersaturated
1.2 performs an actual activity about solubility.
1.3 values the common solutions that can be found at home and can be used in daily living. 1. Learning Tasks 2.1 Topic: Solutions 2.2 Concept: The unsaturated solution has a less amount of solute to be dissolved. The saturated solution can hold no more solute to be dissolved. The supersaturated solution cannot hold more solute. 2.3 Materials 2.3.1 Textbook/Other Reference -Science Grade 7: Matter (K-12 Curriculum), pages 1-16 - http://www.infoplease.com/encyclopedia/science/solution-heat-solution.html

2.3.2 Instructional Materials - video clips, materials enumerated for the experiment and activity sheet. 2. Methodology
3.1 Daily Activities
3.1.1 Prayer/ Greetings Christ Jesus Whom we open our eyes, may you be there; When we open our ears, may you be there; When we open our mouths, may you be there; When we open our diaries, may you be there. Help us to see with your eyes; Help us to hear with your ears; Help us to speak your truth in love; Help us to make time for you… for others… for ourselves. Amen.
3.1.2 Checking of Attendance
3.1.3 Checking of Assignment 3.2 Preparatory Activities 3.2.1 Review Teacher: Class, what is our topic yesterday? 3.2.2 Motivation - Show a 30 seconds video clip. Teacher: What do you notice about these pictures? Base on the presented illustrations, can you guess what will be our topic for today? 3.3 Lesson Proper Teacher’s Activity | Students’ Activity | 3.3.1 Introduction * In chemistry, solution is homogenous mixture of two or more substances. The dissolving medium is called the solvent, and the dissolved material is the solute. * In most common solutions in our home, the solvent is a liquid often water, and the solute may be solid, gas or liquid. * For this experiment please watch this video about solubility. * Is there any question so far? * Nice question. Actually, you can easily determine if the product in our home is a solution or not by the characteristics exhibited by solution: * First, a solution is a homogeneous mixture. * Homogeneous means that the components of the mixture forms single phase where you observed a single component of matter, and matter is any material or thing that occupies space, mass and volume. * Next, is that the particle of solute in a solution cannot be seen by naked eye. * It doesn’t allow the beam of light to scatter. * And lastly, the solute in the solution cannot be separated by filtration. * Is it clear? Any question?3.3.2 Presentation * Ok, if that so. Let me ask you some questions. * Can you please give me some products which are considered solutions found in your home? * Correct. Give a big hand to yourselves. * Another question, are solution always liquid? Why or why not? * Very Good. Let’s give him a round of applause. * Solutions may either be in solid, liquid or gas form. As long as it has the characteristics I‘ve mentioned a while ago like being an observed single component of material it will be classified as solution. * Let me give you some examples of illustrations showing solid solution that you don’t actually think as a solution. * (shows picture of steel) * Class, this steel is considered a solution. It is a mixture of carbon and crystalline mixture of iron atoms. * (show picture of stainless steel utensils) * Another example is the common cooking utensils that presently available in our home like spoon and fork. * (shows picture of bronze medal) * We are also familiars in alloys like bronze, a mixture of copper and tin. * Do you have any question?3.3.3 Comparison and Abstraction * If that so we will now proceed to the concentration of solution. * The concentration describes as the relative amount of solute and solvent in a given volume of solution. * There are 3 types of concentration of solution and I going to show you how they differ from one another by this simple experiment. * First we need salt and 3 cups of equal amount of water each. Which will be represented by A, B, and C. * Add 1 teaspoon of salt for cup A, this will represent the unsaturated solution which has a less amount of solute to be dissolved. Stir it until the salt is totally dissolves in water. * This time for the saturated solution which can hold no more solute to be dissolved, add 1 table spoon of salt for cup B. Do the same process of stirring until the mixture becomes homogeneous. * For cup C add 2 table spoons of salt and do the same process of stirring. As you can notice there are undissolved particles of solutes in the solution which makes it a super saturated solution. A supersaturated solution that cannot hold more solute. * In our activity there are 2 factors that affect the solubility of the solution. * Can you give one? * Very good. * How about the other one? * Nice answer. * Is everything clear now?3.3.4 Generalization * From the discussion and simple experiment we have, what can you conclude about our topic on solutions? * Nice explanation. Alright, do you have any question regarding on our topic? * Is everything clear?3.3.5 Application * Ok, if everything is understood, we will have an activity regarding the properties of solutions. | * ( student raising hand)Ma’am, how can we determine if the product in our home is a solution? * Ma’am, what is a homogeneous mixture? * No Ma’am * Possible answers: coffee, milk, liquid detergent, fish sauce, vinegar, shampoo, water, lotion, perfume. Etc. * Possible answers: Yes Ma’am. Because solvent is a dissolving medium which is liquid and the dissolved material providing a liquid phase. * No Ma’am. Because as what you mentioned earlier, you said that a solution is any material that exhibits a homogeneous mixture. Therefore, it may be solid. Liquid or gas. * No Ma’am. * Ma’am, one is the stirring, the faster the stirring the faster the solubility. * Ma’am, the size of the particles is also a factor, the smaller the size the faster the solubility is. * Yes Ma’am. * On our topic of solutions, we found out that a solution have characteristics of a homogeneous mixture which may be combination of two or more substances. The dissolving medium is called the solvent and the dissolved materials are called the solute. Solutions can be categorized based on their concentration such as unsaturated, saturated and supersaturated solution. * No Ma’am. * Yes Ma’am. |

I. Objectives 1. To demonstrate the physical properties of solutions. 2. To analyze what are the common products in our home that are classified as solutions. II. Materials:
-sugar, salt, mongo seeds, powdered juice, cooking oil and vinegar. III. Procedure | Observation | .1. Predict which among the given samples will dissolved in water. Write your observation in column no.2.2. Put one cup of water in each of the cup.3. Add ½ teaspoon of each of the six samples. Use the teaspoon to dissolve it as much as each samples as possible. Use a different teaspoon for each sample. | 1Sample solid and Liquid | 2Will dissolved in 1 cup of H2O (yes/no) | 3Appearance | 4No. of Phases | 5Can be separated by filtration (yes/no) | 6Solution or Not? | Interpretation | | 1.sugar2.salt3.mongo seeds4.powedered juice5.cooking oil6.vinegar | | | | | | | 3. Evaluation
Directions: Identification. Identify the following statements. Write your answer on the space provided before each number. 1. It is a homogeneous mixture of two or more substances. 2. It is the dissolving medium in a solution. 3. It is the dissolved material in a solution. 4. It is a characteristic of a solution which a mixture observed a single phase of matter. 5. Component of solution which cannot be seen by naked eye. 6. The solute from the solution cannot be separated by which method? 7-9. Solutions may either be in what form? 10. Type of solution having a low concentration. 4. Assignment Make a study of the following: 1. Differentiate substances from mixture. 2. Give the two types of mixture. 3. Enumerate methods of separating mixtures.
*Reference: General and Inorganic Chemistry 1, pages 40-41

Prepared by: ANGELO B. DE GUZMAN BSED 3-A