
Q1-Module 1 Useful and Harmful Materials
Quiz by RELIZA ALIMANGO
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Farmers use chemical fertilizer to increase their harvest. What are the harmful effects of this when improperly used?
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?
Oil spill from ships, barge pollutes the ocean too. What are the most harmful affected by these materials?
Muriatic acid, zonrox, chlorine is substances used as stain remover. When are these become harmful?
LPG, Kerosene, dishwashing liquid, stain remover are useful substances. How can you prevent the harmful effect of it?
Which undergoes a chemical change:
Which product is formed by chemical change?
We can easily recognize that a chemical change occurred in matter because of the following signs except.
Which statement best describes a chemical change?
Which of these activities will result to a chemical change?