Science Class 7 CBQ of The Ever Evolving World of Science (Fragile Frontiers)

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Science Class 7 CBQ of The Ever Evolving World of Science

Conceptual Understanding Based Questions

  1. MCQ: a butterfly’s flight and a paper plane soaring into the sky to represent the process of education. According to the introduction, what is the essential “engine” that allows this learning to take flight?
  1. Following a strict syllabus
  2. Memorizing the facts in the textbook
  3. A natural sense of curiosity
  4. Completing all classroom activities on time

Assertion (A): Science is described as an ongoing process rather than just a collection of facts.

Reason (R): Scientific ideas in one area often inspire discoveries or questions in another.

  1. Both A and R are factually correct, and R provides the precise logical explanation for A.
  2. A is true and R is also true, but R does not logically justify or clarify A.
  3. Assertion A holds true; however, the reason given in R is factually incorrect.
  4. Assertion A is not valid, but the statement in Reason R is accurate.
  1. Short Answer: The text mentions that “life processes” are essential for survival. Name three life processes mentioned that apply to humans and animals.
  2. Short Answer: How did early humans measure the passage of time before the invention of electric or digital clocks?
  3. Long Answer: Explain the relationship between light, shadows, and the celestial movements of the Earth and Moon as described in the text.

Science Class 7 CBQ of The Ever Evolving World of Science

Application Based Questions

  1. MCQ: If you find a “haldi” (turmeric) stain on your uniform and wash it with soap, you are investigating the properties of:
  1. Electricity
  2. Materials and their changes
  3. Living organisms
  4. Shadows

Assertion (A): Modern aircraft design is a sophisticated version of simple observations.

Reason (R): Simple paper planes have inspired real scientific explorations of flight.

  1. Both A and R are factually correct, and R provides the precise logical explanation for A.
  2. A is true and R is also true, but R does not logically justify or clarify A.
  3. Assertion A holds true; however, the reason given in R is factually incorrect.
  4. Assertion A is not valid, but the statement in Reason R is accurate.
  1. Short Answer: Give an example from your daily life of a change that is “reversible” and one that “cannot be reversed,” as touched upon in the text.
  2. Short Answer: Using the text’s logic, why is it important for us to generate artificial light today?
  3. Long Answer: The text suggests that “stepping out of the classroom” is necessary for science. Describe one outdoor activity you could do to understand “patterns in nature”.

Science Class 7 CBQ of The Ever Evolving World of Science

Problem Solving & Reasoning Based Questions

  1. MCQ: In the “Question the Answer” activity, the text emphasizes that “To be a wise person, you must be a whys person”. Which of the following questions best demonstrates a scientist’s attempt to uncover a hidden pattern or process in nature?
  1. On what page does the first chapter begin?
  2. Why does a haldi stain change color when washed with soap?
  3. What is the specific name of the current Science textbook?
  4. How many students are sitting in the science lab?
  1. Short Answer: If a torch battery eventually “runs out,” what does this tell a scientist about the changes happening inside it?
  2. Short Answer: The text mentions that heat flows. If an ice cube melts in a glass, what is the “direction” of heat flow?
  3. Short Answer: If you notice a shadow is very long in the morning and short at noon, what can you infer about the Sun’s position?
  4. Long Answer: Scientists often find that experiments confirming their thoughts lead to even more questions. Why is this cycle beneficial for scientific progress?

Science Class 7 CBQ of The Ever Evolving World of Science

Experimentation & Investigation Based Questions

  1. MCQ: To find out which materials are “metals” or “non-metals,” which toolset from the text would be most useful?
    1. A clock and a shadow
    2. A paper plane and a butterfly
    3. Batteries, lamps, and wires
    4. A magnifying glass and a leaf
    1. Short Answer: You are given a battery, a bulb, and a metal spoon. how would you test if the spoon allows electricity to pass?
    2. Short Answer: What simple experiment could you perform at home to see how “water evaporates” using heat from the Sun?
    3. Short Answer: If you were investigating how plants “breathe,” what part of the plant would you observe closely?
    4. Long Answer: Design a simple experiment to prove that light travels in a straight line using only a glass of water and a laser pointer.

    Science Class 7 CBQ of The Ever Evolving World of Science

    Values & Awareness Based Questions

    1. MCQ: Being a “young science explorer” involves not just discovery, but also:
    1. Getting the highest marks
    2. Responsibility towards the natural world
    3. Following all the rules without questioning
    4. Building the fastest paper plane
    1. Short Answer: How can understanding “human activities” help in addressing environmental challenges?
    2. Short Answer: What does the phrase “learning takes flight when curiosity leads the way” mean to you?
    3. Short Answer: The text says “To be a wise person, you must be a whys person”. Why is asking “why” a valuable trait in a community?
    4. Long Answer: Explain how science can help us create a “more sustainable world” as mentioned in the text. Give one specific example.

    Science Class 7 CBQ of The Ever Evolving World of Science

    Answer Key: Competency-Based Worksheet

    I. Conceptual Understanding

    1. c) Curiosity
    2. a) Both A and R are factually correct, and R provides the precise logical explanation for A.
    3. Nutrition (eating), Respiration (breathing), and Circulation (blood moving nutrients)
    4. By observing the position and length of shadows cast by objects in the Sun
    5. Light helps us see, but when objects like the Earth or Moon block light, they cast shadows. These shadows result in eclipses, while the Earth’s rotation on its axis determines the cycle of day and night.

    Science Class 7 CBQ of The Ever Evolving World of Science

    II. Application

    1. b) Materials and their changes
    2. a) Both A and R are factually correct, and R provides the precise logical explanation for A.
    3. Reversible: Ice melting into water. Irreversible: A fruit ripening or a battery running out.
    4. To allow us to see and perform tasks (like reading) during the night when the Sun is not shining.
    5. Example: Observing the patterns of veins in a leaf or tracking the movement of a shadow over several hours to understand Earth’s rotation.

    Science Class 7 CBQ of The Ever Evolving World of Science

    III. Problem Solving & Reasoning

    1. c) Why do some fruits taste sour?
    2. It indicates that a chemical or internal change has occurred that cannot be reversed.
    3. Heat flows from the warmer surrounding air to the colder ice cube.
    4. The Sun is low in the sky in the morning (creating long shadows) and directly overhead at noon (creating short shadows).
    5. Because each discovery provides a stepping stone to deeper understanding and reveals new mysteries that require further exploration.

    Science Class 7 CBQ of The Ever Evolving World of Science

    IV. Experimentation & Investigation

    1. c) Batteries, lamps, and wires
    2. Connect the spoon into a circuit with a battery and a bulb; if the bulb glows, the spoon is a conductor (metal).
    3. Place a small amount of water in a shallow dish under direct sunlight and measure the decrease in water level over time.
    4. The leaves, to check for tiny openings or structures that facilitate gas exchange.
    5. Direct a laser pointer through a glass of water (perhaps with a drop of milk to see the beam) to observe that the path of the light remains a straight line.

    Science Class 7 CBQ of The Ever Evolving World of Science

    V. Values & Awareness

    1. b) Responsibility towards the natural world
    2. By understanding how our actions are linked to the natural world, we can change our habits to protect the environment.
    3. It means that real education happens when we are driven by our own desire to know “why,” making the journey exciting like a flight.
    4. Asking “why” leads to innovation, better problem-solving, and a deeper understanding of the challenges facing our community.
    5. Science helps us find ways to live without damaging the planet, such as finding clean energy or managing water resources better.

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