I learned that (1)___________________ application in matter results to either (2)___________________ and (3)___________________. The presence or absence of (4) ___________________ has various effects on matter. Common examples are (5) ___________________and (6) ___________________. Fire will continue its flame provided that there is continuous supply of (7) _________________________, (8) _________________________, and (9)___________________. In the absence of oxygen, there will be no (10) ___________________that will occur. Another example of change in the material when oxygen is present is rusting. (11) ___________________ is formed when iron and oxygen react with water or air moisture. Some changes in matter may results to (12)___________________ or (13)___________________ effects on the environment. We have to do our share in maintaining (14)___________________ environment. We must (15)___________________ too much use of electricity and gasoline. We must also avoid (16)___________________ rubber tires and plastics. Lasty, we must try to minimize practices that will produce acid rain, increase global temperature, or deplete the ozone layer.


Nonsense=report(dahil sayang lang ang pts ko)

Grade 5 po ​