District of Balamben, Quarter 1, Sy 2021-2022 'SUMMATIVE TEST I SCIENCE' answer sheet correct answers on your Read and analyze each item carefully. Write the letter of the correct answer. Directions:
1. When is a material useful? A. when the material brings harm B. when the material serves a purpose C. when the material is toxic D. when the material hazards
2. When is a material harmful? A. When the material can be used many times B. When the material can be used for something different from its purpose C. When the material gives other uses D. When the material brings danger to people if they are thrown improperly.
What will happen to biodegradable waste when decomposed by bacteria? A. It pollutes the surroundings B. It melts by the sun C. It breaks into pieces D. It becomes non-biodegradable waste.
Which of the following is a non-biodegradable waste? A. wood B. leaves C. rubber D. paper.
What will you do with garbage properly? A. in the river B. in the mountain C. in the lake D. in the landfill.
You noticed that it is already expired. What will you do with the medicine from the pharmacy? A. mix it B. take the medicine C. scold the pharmacist D. change or return the medicine.
Which of the following is the most harmful to the environment? A. deforestation B. road widening C. using these materials for farming D. using stain remover substances to remove stains on clothes.
Which of the following removes Muriatic acid stains on clothes? A. kitchen ties B. child cleaning agents C. chlorine D. vinegar.
Which of these substances whitens the skin? A. soaps and detergents B. chemicals C. antiseptics D. cigarettes and alcohol.
Which of the following is considered carcinogenic? A. aerosol B. skin C. plants D. minerals.