Lesson about Evapoation Q1.pptxnamnamnam

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1. REVIEW Let us try to recall the concepts learned last week.

2. 1. What technique in separating mixtures is used by pouring off the liquid from solid substances while preventing the solid from escaping? A. Sieving B. Decantation C. Picking

3. 2 . What ways in separating mixtures are use during decantation process? A. Picking and Sieving B. Sieving and Decanting C. Pouring and Scooping

4. 3. Which of the following mixtures will decantation be useful? A. Sand and cement. B. Milk and chocolate coffee. C. Beef sinigang with fats floating.

5. 4. In mixed ginataan with bilo-bilo , chopped kamote,gabi and banana, how will you separate them from the soup? A. By picking –up. B. By scooping using spoon. C. By pouring off the casserole.

6. 5. How can you separate oil fats from tinola ? A. By filtration. B. By scooping. C. By pouring.

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8. Setting of the Standards to be followed when doing the activity.

9. ACTIVITY TIME

10. EVAPORATION

11. CONCEPT FORMATION Developing the Science Ideas Learned What is EVAPORATION?

12. EVAPORATION I s the process of changing liquid to gas/ vapor . In evaporation , heat is needed to separate liquid into gas. Gas / vapor is produced when water is heated. Water vapor goes up the atmosphere to form clouds.

13. Try to test yourself. Direction: Read the statements carefully. Choose the letter of the correct answer. Write your answer in ¼ sheet of paper.

14. 1. What is the technique used to separate salt from water? A. Filtration B. Evaporation C. Picking

15. 2.What happens when water is heated during evaporation? A. Water evaporates. B. Water will back to salt again. C. Water will be mixed to salt solution.

16. 3. Which of the following is needed to separate water from salt solution? A. Heating B. Cooling C. Stirring

17. 4. What form of gas comes out during the heating process ? A. Vapor B. Ice C. Clouds

18. 5. Where does water vapor go during evaporation process? A. Into the atmosphere. B. Under ground. C. Floating on water again.