.powerpoint presentation about the lesson

PowerPoint Presentation about the lesson in Science.Separating Mixtures using different methods.Using different techniques in separating mixtures makes our work easier and faster.They are very important in our daily life.Thus we need to know the different methods so that we have the knowledge and skills in separating mixtures

1. SEPARATING MIXTURES THROUGH FILTERING AND SIEVING SCIENCE 6 1 st QUARTER

2. Objectives: Describe techniques in separating mixtures such as decantation, evaporation, filtering, sieving, and using a magnet. (S6MT1d-f-2) Identify mixtures that can be separated through filtration and sieving; Enumerate mixtures that can be separated through filtration and sieving, Describe how mixtures can be separated hrough filtration and sieving.

3. Review: Directions: Draw a smiley face if the mixture is a suspension and a sad face if not.

4. Review: Directions: Draw a smiley face if the mixture is a suspension and a sad face if not.

5. Review: Directions: Draw a smiley face if the mixture is a suspension and a sad face if not.

6. Review: Directions: Draw a smiley face if the mixture is a suspension and a sad face if not.

7. wow… you did great!

8. Mixture is all around us. In fact, even the air that you are breath right now is a mixture of different gases. It is part in our daily living from the air that we breathe down to the food that we eat are examples of a mixture. Thus, learning and understanding more about it is important.

9. PICTURE ANALYSIS:  

10. What is each worker doing in the picture? 2. What will they do to be safe while doing these activities?

11. In building houses and other structures, we often see workers used framed wire screen to separate stones from sand before it is mixed with cement. They want the sand to be as fine as possible before they mix it with the cement. This will result to a better cement mixture resulting to stronger walls, flooring, and foundation of any building.

12. On the other hand, carpenters love to sip coffee early in the morning before starting to work. They usually brew coffee and use cloth to filter the insoluble ground coffee from the liquid. These two processes of separating mixtures involve filtering and sieving that will be discussed in our lesson for today.

13. Now, let’s find out the details of these two techniques:   Separating technique of insoluble solid from a liquid is done with the use of a cloth or filter paper. A common example that uses cloth or filter paper is when brewing coffee in the morning. When separating two solid materials where one particle is fine and the other is coarse, one uses a strainer. 

14. Here are the other techniques of separating mixtures that involve the following: What is filtering? Filtering Solid and liquid components can be separated with the use of filter paper or filter cloth as a medium in which liquid passes through a filter paper leaving insoluble solid material in the medium. What is sieving? Sieving Sieving is as a method in which two or more components of different sizes are separated from a mixture on the basis of the difference in their sizes which uses a sieve.

15. Let’s Do It! (Improvised Filter Device) Directions: In this activity, you will experience making an improvised filter device and learn how filtration process is done and at the same time mastering physical separation technique. In doing this activity, make sure to handle the materials carefully to avoid getting hurt.

16. 1. What is a filtering? 2. What material remains in the filter cloth or paper when filtering is used to separate mixtures? 3. What material passes through a hole of a strainer when sieving is used to separate mixtures? 4. What is the difference between sieving from filtering?

17. Some Useful Benefits of Separating Mixtures Separation by Filtration We have clean water to drink mainly because of filtration. This is the most important process in water treatment facilities. Water is filtered through layers of sand and anthracite, a special kind of carbon, which removes the impurities in it.

18. Separation by Sieving This is also known as straining. Brewed leaves are separated from the liquid tea by using a strainer. Sand can be separated from rocks and pebbles by passing them through a fine wire mesh for construction use.

19. Direction: Write Sieving or Filtering in identifying the appropriate technique of separating mixtures. 1. flour from small pebbles - ______________ 2. mongo from baby powder - _____________ 3. milk from grated coconut - ______________ 4. dried tea leaves from hot water - _________ 5. sand from water - _________________ 6. water from the faucet - ______________ 7. seeds from flour - _________________ 8. stones from water - _________________ 9. gasoline from marbles - ______________ 10. Grind rice from pebbles- _______________

20. GROUP ACTIVITY : EXPLORATION

21. Group the pupils into 3 groups. Distribute the cards that indicate a certain task. For Group 1 & 2, let each group answer the ff questions: Name the substance present in the mixture. What appropriate method/ technique do you use in order to separate the given mixture? Is the process useful to our daily life? In what way?

22. CRITERIA 3 2 1 1. CONTRIBUTION All members contribute equally and some even contribute more than was required.   All members contribute equally All members contribute but some contribute more than others 2. ON TASK Team is on task all of the time. Does not need any teachers’ reminders. Team is on task most of the time. Does not need any teachers’ reminders. Team is on task some of the time. needs teachers’ reminders. 3. COMMUNICATION Each member listens well to others members. Each member speaks in friendly and encouraging tones. All members listen to each other and speak to each other in equal amounts. Members need some teacher intervention to be able to listen to each other and speak to each other privately. 4. COOPERATION All members work well together all of the time; assist other when needed members work well together most of the time; members work well together some of the time; some teachers intervention needed RUBRIC:

23. ACTIVITY 1 (GROUP 1) ACTIVITY 2 (GROUP 2)

24. Activity 3 (Group 3) Sort out the mixtures inside the box and arrange them in their proper column.

25. APPLICATION: Direction: In your journal write a short explanation on the following situations. 1. Kyle wanted to bake a cake for the birthday of his cousin. He found out that the flour he will be using mixed up with some dried seeds. What technique will he use and why? 2. What type of mixture will you form when you put dried tea leaves in hot water and then put some ice cubes and sugar on it? What separating technique did you use to extract dried tea leaves from hot water? Explain why you used such technique.

26. Generalization: Filtering of solid and liquid mixtures can be separated with the use of ____________ or ____________ as a medium in which ____________________ passes through a filter paper leaving ____________________ material in the medium. Sieving is a method in which __________________ of ______________________ sizes are separated from a mixture on the basis of the _______________________.

27. Direction: Choose the letter of the correct answer. Use separate sheet for your answers. 1. What method of separating mixtures will you use if you want to remove small shells in a grind/ground coffee? filtering c. evaporation b. sieving d. decantation 2. Which of the following mixtures use filter cloth to separate solid from a liquid extract? flour with stones c. baby powder with pebbles b. powder chalk with seeds d. milk from grated coconut 3. In filtering technique of separating mixtures, what type of material passes through a filter paper or cloth? a. liquid c. solid b. gas d. plasma

28. 4. Yesha accidentally mixed the grind/ground rice that she will be using in making “ bebingka ” or rice cakes and “ puto ” with pebbles while looking for her other ingredients. How will Yesha removes the pebbles from the grind/ground rice? She will use filter paper to remove it. b. She will use evaporation process to remove it. c. She will use decantation process to remove it. d. She will use a sieve to remove it.

29. Direction: Write a short explanation on the following questions. Write the answers in your journal.