Identify useful materials at home, in school, and in the community. S5MT-Ia-b-1.3- 1.4 (Activity Sheets)

Useful and Harmful Materials

I. Learning Competency with Code:             

            LO3: Identify useful materials at home, in school, and in the community. S5MT-Ia-b-1.3

LO4: Identify harmful materials at home, in school, and in the community. S5MT-Ia-b-1.4

                  

II. Directions:

Identify each picture that can be found at home, in school and in the community whether it is useful or harmful to use. Write the name of the pictures in proper column

III. Directions: Choose the letter of the correct answer

1.         Farmers use chemical fertilizer to increase their harvest. What are the harmful effects of this             when improperly used?

           

            A.  It pollutes water, air and soil

            B.  It gives abundant harvest

            C.  It destroys the plants

            D.  It gives more income to the farmer

2.         Chemical substances that are left over from making products such as soap, detergent, hair spray and canned goods. What are you going to do with these harmful materials?

           

            A.  Buried into the soil

            B.  Throw into the bodies of water

            C.  Leave it anywhere at home

            D.  All of the above

3.         Oil spill from ships, barge pollutes the ocean too. What are the most harmful affected by       these materials?

            A.  Aquatic plants and materials

            B.  Birds flying around the sea

            C.  People travelling and crossing the ocean

            D.  None of the above

4.         Muriatic acid, zonrox, chlorine is substances used as stain remover. When are these            become harmful?

            A.  When live these anywhere at home

            B.  Keep this in the proper place

            C.  Do not use these without guide

            D.  None of the above

5.         LPG, Kerosene, dishwashing liquid, stain remover are useful substances. How can you prevent the harmful effect of it?   

             A.  Keep it properly

             B.  Do not use it

             C.  Leave where can reach these

             D.  None of the above:

IV. Remember:

Some substance are useful because they are used for food, for cooking and cleaning purposes, for destroying harmful insects and for keeping us healthy.

Certain substances or materials have harmful effects on people, animals and plants when not used properly.

Chemicals are very useful to people. We used them daily. Soap and detergents are good cleaning agents and antiseptics. They kill germs and bacteria that can cause bacteria.

References:

           

https://www.google.com/search?q=identify+useful+and+harmful+materials+at+home+school+and+in+community&client=ms-android-oppo-rev1&prmd=inv&sxsrf=ALeKk022BrXcp8bxn0mNZ5XPtCdFktuK1Q:1588056877148&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjjjK7wxlrpAhXWwosBHS1BCwgQ_AUoAXoECA4QAQ&biw=360&bih=630&dpr=2

Answer Key:

A.

Useful	Harmful
Soap	Propane
Clothes	Paint
Table	Knife
Laboratory tool	pesticide
Computer
glass

B.

1. a

2. a

3. a

4. a

5. a