ilide.info-winnowing-pr_147b4e3b3fb6171ecc720831f5d8d53c.pptx

winnowing

1. Winnowing Technique in separating solid- solid mixtures

2. Children sometimes your viand is a mixture of potatoes, carrots, meat and peas. If you don’t like to eat carrots and peas, what do you do? What technique of separating mixtures do you use to separate carrots and peas to potato and meat? Engagement: Review

3. Engagement: Motivation

4. Engagement: Motivation

5. What are the standards to be followed while performing the experiments? Exploration: Group Activity

6. Exploration: Group Activity

7. What happened to the flour as the wind blows? Can you separate flour and stone using a strong wind? Why do you think so? Explanation: Discussion

8. What can you see on the picture? How did the girl separate rice from its husk? Explanation: Discussion

9. What situation did the group show? Can we use the process of hand picking in cleaning the surroundings? Explanation: Discussion

10. How did you separate the paper clips from the bits of paper? Explanation: Discussion

11. How are you going to define the process of winnowing? Explanation: Discussion

12. Based from all the activities you have performed, how are you going to describe the process of winnowing? Explanation: Discussion

13. What technique did you use to separate a heavy material from a lighter one? How do you do the process of winnowing? Explanation: Generalization

14. Separation process is a method to achieve any phenomenon that converts a mixture of chemical substance into two or more distinct product mixtures, which may be referred to as mixture. at least one of which is enriched in one or more of the mixture's constituents. Explanation: Generalization

15. Winnowing is the process by which we can separate any heavy material from a lighter one with the use of wind. It is a relevant method of separation in case of solid-solid mixtures having components of different weights. Explanation: Generalization

16. Example: the wheat grains from the field still have dried husk and chaff, which have to be separated and thrown away before the wheat can be used. Explanation: Generalization

17. The husk is blown away as it is much lighter than the grain. So, when the grains are gently dropped to the ground, only the wheat grains collect there, while the husk blows away. Explanation: Generalization

18. ELABORATION: Application Do you think the process of winnowing can be of great help to community? How?

19. Evaluation Watch a short video clip: https :// www.youtube.com/watch?v=bgS48 Pk_jZ0

20. Assignment List down examples of mixtures that can be separated using winnowing process.