Questions


September 2022 1 2 Report
nts. Write TRUE if the statement tells the truth and FALSE if not. 1. Physical properties of materials are classsified according to texture color and hardness. _2. Unlike plastic materials, rubber bands are elastic because it returns to its original shape after force is applied. 3. Malleability means that a metal can be easily broken into thin sheets. 4. Chemical properties are observed indirectly.Sometimes they have harmful effects on livingthings. 5. Using of chemical fertilizer is good for the plants and to our environment. 6. Physical change happens when the materials change in shape or size but the substances or particles making up the materials are still the same. -7. Burning is a kind of physical change. 8.The changing of white into brown color of a scliced apple is a product of chemical change. 9. Rusting of an iron is another example of chemical change in materials. 10. The 5 Rs in waste management are very important specially in this time of pandemic that our way of living has been adveresly affected by community quarentine at different levels



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