Melting and freezing

freezing and melting (Grade 8 Science) 3rd quarter

1. PHASE CHANGE OF MATTER

2. M _ L T _ N _

3. M e L T i N g

4. S _ L _ _

5. S o L i d

6. L _ Q _ _ D

7. L i Q u i D

8. F _ e _ z I _ G

9. F r e e z I n G

10. MELTING AND FREEZING

11. ACTIVITY 3.3 “MELT ME”

12. 1.Explain what happenED to the particles of water in ice as it turns to liquid using the particle model of matter.

13. 2. what will happen to the liquid on the saucer if it is transferred into a small container and left inside the freezer after a few hours or overnight?

14. 1.Explain what is happenED to the particles of CANDLE as it turns to liquid using the particle model of matter.

15. 2. what will happen to the liquid PARTICLE OF CANDLE on the saucer if it is left after a few hours or overnight?

16. MELTING

17. MELTING is the process wherein solid turns into a LIQUID

18. HEAT IS ADDED Liquid Solid

19. freezing

20. freezing is the process wherein solid turns into a gas

21. HEAT IS REMOVED Liquid Solid

22. freezing point of water : °C . ° Celsius to ° Farenheit formula: ( _°C × 1.8) + 32 = _°F Example: 5°C × 1.8) + 32 = 41°F

23. TELL WHETHER THE FOLLOWING PICTURES BELONG TO MELTING OR FREEZING

24. Direction: in a ¼ sheet of pad paper answer the following questions

25. 1.What is the melting point of water? 2. is the process wherein solid turns to liquid 3. is the process wherein liquid turns to solid 4.-5. give atleast 2 examples wherein melting can be observed

26. 1.What is the melting point of water? 0 ° C 2. is the process wherein solid turns to liquid - MELTING 3. is the process wherein liquid turns to solid -FREEZING 4.-5. give atleast 2 examples wherein melting can be observed

27. ASSIGNMENT In your science notebook,answer the following questions: 1.What is THE DIFFERENCE BETWEEN atom AND MOLECULE?

28. THANK YOU! PREPARED BY: MS.JOY D.SANTILLAN