Science Grade 4

1. If you are going to dispose waste materials commonly found at home, what are yo going to do with the decaying materials?

2. What do you call the materials that serve a purpose?

3. Which of the following is considered useful materials?

I. Recycling plastic bottles

II. Making flower vase out of plastic bottles

III. Making fertilizer out of decaying waste

IV. playing pesticides can and bottles by children

4. During this pandemic situation everyone is advise to do the home bio-gardening that will help us in food survival. What do you think is the waste materials that can be utilize into organic fertilizer?

I. kitchen waste II. garden waste III, pesticides bottles IV. Plastic waste

5. Which of the following action is useful to environment?

I. Making eco bag out of straw.

II. writing in front and back of paper II. Using old tires to make pot, sofa set, table and vegetable pot IV. Disposing plastic waste materials or any non –biodegradable into river.