Porous and Non Porous Materials

Materials that absorbent and non absorbent, materials that float and sink, materials than undergo decay.

1. Prayer: In the name of the Father and of the Son and of the Holy Spirit, Amen. We thank you Lord for another day of our life,. Thank you for all the blessings you are giving us. Thank you for letting us attend once more in our online class. Please continue to shower us with strength and guidance to grasp all the knowledge we need. Help us in our daily undertakings. We ask these through Christ our Lord, Amen. In the name of the Father and of the Son and of the Holy Spirit, Amen.

2. Objectives: 1. Describe and classify materials based on the ability to absorb water; 2. Identify and classify materials that float and sink; and 3. Identify and classify materials that undergo decay.

3. Let us learn and explore objects that can absorb water and those that cannot!!!

4. Look at the pictures.

5. Porous Material is a material containing pores. It has minute spaces or holes through which liquid or air may pass. It is often characterized by its porosity. Non porous they have no holes. Air or water cannot pass through it. Porous materials absorb water while non-porous materials do not absorb water.

6. Let’s find out materials that float and sink !

7. Application: How can you help Mother Earth after knowing things that can be decayed and things that do not decay?

8. Exercises: Absorbent or Non- absorbent

9. Float or Sink?

10. Go to Quizziz App

11. 1. Which material can absorb water? A. wood B. towel C. rubber mat D. plastic bottle

12. 2. Which object will float in water? A. big stone B. steel ball C. plastic ball D. 5-peso coin

13. 3. Which material has the ability to sink in water? A. log B. styrofoam C. plastic cup D. metal spoon

14. 4. Why do life vests keep you float in the sea? A. because of its shape B. because it is filled with air C. because it is made of rubber D. because it is heavier than water

15. Which material has the ability to decay? A. stone B. rubber C. plastics D. left-over food

16. Evaluation

17. Assignment Answer exercises about float and sink; absorb water; and undergo decay that will be posted in google classroom.