Last Updated on November 29, 2024 by XAM CONTENT
Hello students, we are providing case study questions for class 7 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 7 science. In this article, you will find case study questions for cbse class 7 science chapter 13 Wastewater Story.
| Chapter | Wastewater Story |
| Type of Questions | Case Study Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 7 |
| Subject | Science |
| Useful for | Class 7 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 7 Science Chapterwise Case Study |
Case Study Questions on Wastewater Story
Questions
Question 1:
I. Read the given paragraph below and answer the following questions
Clean water that is fit for use is unfortunately not available to all. Majority of people have no access to safe drinking water. This accounts for a large number of water-related diseases and even deaths. Sewage is wastewater released by homes, industries, hospitals, offices and other users. Sewage is a complex mixture. Treatment and purification of water are very important as poor sanitation and contaminated drinking water cause a large number of diseases such as cholera, typhoid, polio, meningitis, hepatitis and dysentery. A network of big and small pipes, sewers and sewerage carries sewage from the point of being produced to the point of disposal. Manholes are located in every sewerage.
Q. 1. The increasing scarcity of freshwater due to
(a) population growth
(b) pollution
(c) industrial development
(d) All of the above
Difficulty Level: Easy
Ans. Option (d) is correct.
Explanation: The increasing scarcity of freshwater due to population growth, pollution, industrial development, mismanagement and other factors.
Q. 2. Cholera and typhoid are caused by ________and _______respectively.
(a) Corynebacterium cholera, Vibrio paratyphi
(b) Vibrio cholera, Salmonella paratyphi
(c) Mycobacterium cholera, Vibrio paratyphi
(d) Vibrio cholera, Salmonella paratyphi
Difficulty Level: Easy
Ans. Option (d) is correct.
Explanation: Cholera and typhoid are caused by the bacteria Vibrio cholerae and Salmonella typhi. They both transmitted by contaminated food and water.
Q. 3. The point of disposal is called a
(a) checking plant
(b) cleaning plant
(c) treatment plant
(d) testing plant
Difficulty Level: Medium
Ans. Option (c) is correct.
Explanation: The system of a network of pipes is used for taking away wastewater from homes or public buildings to the treatment plant for cleaning.
Q. 4. What is a difference between sewers and sewer system?
Difficulty Level: Medium
Ans. Sewers is a network of big and small pipes which carry waste water.
Sewerage is a system which includes the removal and disposal of sewage through sewers. It is also known as sewer system.
Q. 5. Why sewage is called as a complex mixture? Name two nutrients present in sewage?
Difficulty Level: Hard
Ans. Sewage is a complex mixture because it contains suspended solids, organic and inorganic impurities, nutrients, saprophytes and disease-causing bacteria and other microbes.
Nutrients present in sewage are -Phosphorus and Nitrogen.
Also check
- Wastewater Story Class 7 Case Study Questions Science Chapter 13
- Forests Our Lifelines Class 7 Case Study Questions Science Chapter 12
- Light Class 7 Case Study Questions Science Chapter 11
- Electric Currents and Its Effects Class 7 Case Study Questions Science Chapter 10
- Motion and Time Class 7 Case Study Questions Science Chapter 9
- Reproduction in Plants Class 7 Case Study Questions Science Chapter 8
- Transpirations in Animals and Plants Class 7 Case Study Questions Science Chapter 7
- Respiration in Organisms Class 7 Case Study Questions Science Chapter 6
- Physical and Chemical Changes Class 7 Case Study Questions Science Chapter 5
- Acids Bases and Salts Class 7 Case Study Questions Science Chapter 4
- Heat Class 7 Case Study Questions Science Chapter 3
- Nutrition in Animals Class 7 Case Study Questions Science Chapter 2
- Nutrition in Plants Class 7 Case Study Questions Science Chapter 1
Topics from which case study questions may be asked
- State the importance of clean water.
- Define sewage and waste water.
- Describe steps to purify water.
- Explain the steps to treat waste water.
- Discuss the importance of sanitisation.
We all need water for survival and to do everyday activities. Water is home to aquatic organisms. Plants also need water for their survival. Let us discuss the importance of water in our daily life.
We need clean water so cleaning and purification of water is required to make it useful.
For further practice on case study questions related to Class 7 Science Chapter 13 Wastewater Story, we recommend exploring the link given below.
Frequently Asked Questions (FAQs) on Wastewater Story Case Study Questions
Q1: What are case study questions for CBSE examinations?
A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.
Q2: Why are case study questions important for understanding class 7 science chapters?
A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.
Q3: How do case study questions differ from other question types?
A3: Unlike direct questions that test specific knowledge, case study questions involve analyzing a scenario, understanding the context, and applying various scientific concepts to answer the questions. They test higher-order thinking skills such as analysis, synthesis, and evaluation.
Q4: Are there any resources available online for students to practice case study questions on class 7 science chapters for CBSE exams?
A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our website to access these questions and enhance your learning experience. There is another website Physics Gurukul that offers a large collection of case study questions.
Q5: How can students effectively prepare for case study questions on Forests Our Lifelines for CBSE exams?
A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.
Q6: How can teachers incorporate case study questions on Forests Our Lifelines class 7 science into classroom teaching?
A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of Forests Our Lifelines
Q7: What steps should I follow to correctly answer case study questions?
A7: Follow these steps:
Read the case study carefully. Understand the scenario and the information provided.
Identify the key concepts. Determine which scientific principles or concepts are relevant to the case study.
Analyze the information. Break down the information, identify relationships, and note any data or facts given.
Answer the questions. Apply your knowledge to answer the questions, ensuring that your responses are based on the case study and the relevant scientific concepts.
Q8: What should I check when reading a case study?
A8: Check the following:
Context and background: Understand the setting and context of the case study.
Key facts and data: Identify important details, data points, and observations mentioned.
Relevant concepts: Recognize which scientific concepts and principles are applicable.
Questions asked: Carefully read each question to understand what is being asked and how it relates to the case study.
Q9: What are common mistakes to avoid when answering case study questions?
A9: Common mistakes include:
Not reading the case study carefully: Missing important details and context.
Ignoring key concepts: Failing to identify and apply relevant scientific principles.
Superficial analysis: Providing answers that lack depth and do not fully address the questions.
Making assumptions: Adding information not provided in the case study or making unsupported assumptions.
Q10: How can I ensure my answers are thorough and well-structured?
A10: Ensure your answers are thorough and well-structured by:
Organizing your thoughts: Structure your answer logically with a clear introduction, body, and conclusion.
Using evidence: Support your answers with specific information from the case study.
Applying relevant concepts: Clearly explain how scientific principles relate to the case study.
Reviewing your answers: Check for completeness and accuracy, ensuring all parts of the question are addressed.
Q11: What are the important keywords from the chapter “Wastewater Story”?
A11: Important keywords from the chapter “Wastewater Story” are given below:
Aeration: Mixing of air in any materials like air mixed in water.
Sewage: Dirty water from homes and factories.
Sewer: A network of pipelines which carries sewage.
Sewage treatment: Process of removal and disposal of sewage.
Wastewater: Used water generated in homes, factories and industries.
Chlorination: Process of treatment of a substance such as water using chlorine.
Pollutant: Any unwanted material introduced in the environment.
Sedimentation: Process of settlement of solid particles at the bottom of a liquid.
