CBSE Class 10 Science Integrated Science VBQs

CBSE Class 10 Science VBQs - Integrated Science. Based on CBSE and NCERT guidelines. Value based questions are now being given in Class 10 Science exams to promote morals and values in students, Students should read and understand the following VBQs to get better understanding and score good marks in exams. 

VALUE BASED QUESTIONS

Class X

Carbon and its Compounds

1. Ajay observed that the cooking vessels in his house are blackened. He asked his mother to check the air holes of the kerosene/gas stove.

CONTEXTUAL QUESTION: Why are the vessels getting blackened? How can you rectify this? 

VALUE BASED QUESTION: What two values Ajay has in his mind ? 

Value Points:

   1. Responsible Behaviour

   2. Observation skill

   3. Social concern

   4. Using knowledge for practical use

2. A group of students conducted an awareness campaign to insist on reducing the usage of Vehicles run by petrol as they pollute the environment.

CONTEXTUAL QUESTION: Which elements present in petroleum are major pollutants of the environment? Name the process by which energy is obtained from the fuel. 

VALUE BASED QUESTION: List any two values learnt by the students in the awareness campaign.

Value Points:

     1. Responsible Behaviour

     2. Environmental conservation

     3. Energy Conservation

     4. Awareness of health and hygiene

3. Praveen saw few vanaspati packets in the grocery shelf and requested his mother not to use vanaspati and replace it with a vegetable oil.

CONTEXTUAL QUESTION: Why are vegetables oils preferred to vanaspati? Name the process by which vanaspati is obtained from vegetable oil

VALUE BASED QUESTION: What are the values do you think Praveen has?

Value Points:

   1. Awareness of health and hygiene

   2. Capability to find alternative resource

   3. Application of knowledge to practical life

   4. Concern for the family

4. Ethanol is an important industrial solvent. To prevent the misuse of ethanol some additives are mixed with it.

CONTEXTUAL QUESTION: What substances are generally added to make ethanol unfit for drinking? What is ethanol called after mixing these? 

VALUE BASED QUESTION: What are the values followed? 

Value Points:

   1. Social responsibility

   2. Awareness

   3. Alertness

   4. Application of theoretical knowledge

5. Sita prefers to use Detergents over soap while washing clothes with hard water.

CONTEXTUAL QUESTION: Why are detergents effective in hard water? (2)

VALUE BASED QUESTION: What values did Sita learn by using detergents?

Value Points:

1. Water Conservation

2. Capability to find alternative resource

3. Application of knowledge to practical life

Periodic Classification of Elements

01. Aashish is a student of Class V. His class teacher gave him an assignment to write a review of any of the books written by Enid Blyton. He goes to the library but he was unable to locate anyone. He approaches the librarian for help. The librarian took him to one of the sections of the library and showed him many books of Enid Blyton.

CONTEXTUAL QUESTION : 1

        (i) What helped the librarian to locate the book easily ?

VALUE BASED QUESTION :

(ii) Mention any two values that Aashish learnt 1+1

(i) Value Points

1. awareness about classification

2. Application of knowledge.

 

3. orderliness

02. Tanvi was reading the morning newspaper. She came across a new word. She wanted to know its meaning and the way it is pronounced. She refers the dictionary and was thrilled when her attempt was successful.

CONTEXTUAL QUESTION :

           Which property of the dictionary helped her in locating the word easily? 1

VALUE BASED QUESTION :

(ii) What values do you think that Tanvi has? 1

Value Points

1. Awareness about classification

2. Application of knowledge.

03. A particular school has house matches after the assembly on every wednesday. There would be utter chaos before the matches since each class is divided into different houses. The P.T.Master approached the Principal and got permission to allow the students to assemble housewise on Wednesdays.

CONTEXTUAL QUESTION :

         What is the reason for chaos before the matches ? Relate this to any one method of periodic classification of elements. ½+1/2

VALUE BASED QUESTION :

What values can be imbibed from the P.T.Master’s suggestion ? 1+1

Value Points (any two)

1. Need for change with time

2. Capability to find alternative solution.

3. Simplifying work

04. Mendeleev left some gaps in his periodic table and predicted the discovery of new elements. Even though it was a drawback he boldly presented his table.

CONTEXTUAL QUESTION :

           What is your view about Mendleev’s decision? 1

VALUE BASED QUESTION :

List any any two values learnt from Mendleev ‘s decision 1

Value Points

1. Self - confidence

2. Courage to face situations.

05. The teacher was explaining the properties of elements, the types of bonding in the class. After that she asked the children the position they preferred in the periodic table if the choice is given as 14 th group or 18th group. Some chose14th and some18th.

CONTEXTUAL QUESTION :

           (i) Compare the properties of group 14 and group 18 elements.1/2+1/2

VALUE BASED QUESTION :

          (ii) Mention the value points for those who chose group 14 and group 18. 1+1

Value Points

Group 14 – sharing and caring, friendliness

Group 18 - independent, staying calm and composed in all situations.

Management of Natural Resources

1) Rachel cuts extra pages from her old note book and makes a beautiful note pad. She carries it to her class. Her classmates are motivated to do the same when they see her using this note pad.

Contextual part:

      a- Which of the three R’s have been exhibited by Rachel? (1)

Value based:

      b- What two values did Rachel exhibit through her effort? (1)

Value points

*Environmentally sensitive

* Practice of three R’s

* Responsible citizen

 

* Being futuristic

2) At the time of Bhogi celebration Deepika burns her old belongings but Diya decides to donate her old belongings rather than burning it.

Contextual part:

        a-What is the effect of Deepika’s action on the environment? (1)

Value based:

       b-What two values have been exhibited by Diya? (1)

Value points

      *Concern for environment

      *Helping mentality

      *philanthropic

      *empathy/ compassion

3) Sudha insisted her father to buy energy star qualified air conditioner with five stars which saved a lot of money on utility bills.

Contextual part:

       a- What is her contribution towards protecting the environment? (1)

Value based:

      b-What two values do you think are depicted by Sudha’s effort? (1)

Value points

    *awareness

    *environmentally sensitive

    *energy conservation

    *right decision

4. Akshita took a powder tin and decorated it to be used as a pen stand. She was awarded A grade for efforts.

Contextual part:

Which of the three R’s have been exhibited by Akshita? (1)

What values did Akshita exhibit through her efforts? (1)

Value points

     • Responsible behaviour

     • Environmentally sensitive

     • Practice of three R’s

     • Being futuristic

5. Pradivya always cycles to school but her neighbour Mahalakshmi is dropped by her father in a car.

Contextual part:

Why did Pradivya chose to cycle to school than to go by car? (1)

What concern is Pradivya showing towards the environment? (1)

Value points

   • Sensitive to environment

   • Participating citizenship

   • Being futuristic

 

   • Awareness

6) Jitu drops his father’s old mobile and charger in e-waste bins of one of the thirteen Nokia priority centres of Chennai. In return for old mobile phones and chargers Nokia provided him with pen stand ecofriendly pencils. When Jitu’s friends came to know about this they too were inspired to drop their old, unwanted mobile phones in Nokia e-waste bins.

Contextual part:

     a- Why is there a need to segregate e-waste? (1)

Value based:

     b-What two values are shown by Jitu? (1)

Value points

     *awareness

     *environmentally sensitive

     *responsible citizen

     *futuristic

7) Chennai Corporation collects plastics from door to door which is used for laying tar roads. Thus Manoj would always store plastic wastes at home to be given to the person who comes to collect plastics. But Vinod ignores this and puts the plastic wastes in the dust bin.

Contextual part:

      a-What would be the effect of Vinod’s action on the environment? (1)

Value based:

     b- What two values are depicted by Manoj? (1)

Value points

     *awareness

     *environmentally sensitive

     *responsible citizen

     *futuristic

     *self discipline

8) In collaboration with I.T.C a school asked students to segregate paper and plastic wastes so that they could be taken by I.T.C. On giving away their used up notebooks, student would receive new note books.

Contextual part:

      a- Why is there a need to segregate plastic and paper waste? (1)

Value based:

     b-What two values are exhibited by the school authorities? (1)

Value points

    *concern for environment

    *futuristic

    *awareness

    *sensitive towards community

 

    *practice of three R’s

OUR ENVIRONMENT

1) Diya always puts vegetable and fruit peels in composting pits and makes compost out of it. She uses this compost in her kitchen garden. Nikita uses fertilizers for plants in her garden.

Contextual part:

      a- Compare the effect of Diya’s and Nikita’s action on environment. (2)

Value based:

     b-What two values are exhibited by Diya? (1)

Value points

     *sensitive to environment

     *awareness

     *futuristic

     *active and responsible citizen

*Practice of 3 R’s

2) Shivani goes to her village with her parents. In the village she saw farmers using DDT as pesticide.

Shivani with her parents goes and educates the farmer about ill effects of DDT.

Contextual part:

      a- Explain biological magnification of DDT in a food chain. (2)

Value based:

     b-What two values are exhibited by Shivani and her parents? (1)

Value points

     *awareness

     *environmentally sensitive

     *helpful

    *sensitive towards community

3) Ramu from a remote village got an appointment in an MNC in Chennai. He was excited to spend his life in city, but the conditions in the city were threatening. He found over flowing garbage bins in street corners. He informed the municipality to clear it.

Contextual question

Give two ways in which the overflowing garbage would affect the environment. (1)

Value based:

    What values were exhibited by Ramu’s action? (1)

Value points

     *Responsible attitude towards society

     * Concern for clean environment

 

     *Awareness

4. Akash was making an aquarium. Hew took care not to introduce a shark into his aquarium.

Contextual part

       Depict an aquatic food chain comprising of four steps. (2)

Value based:

      What values did Akash exhibit while making an aquarium? (1)

Value points

     *Right decision

     *Concern for organisms

     *Awareness

     *Environmentally sensitive

5. Mr. Raman who works in an IT company insisted his wife to buy only organic fruits and vegetables for his children.

Contextual part:

     Why do you think he insisted on buying organic vegetables and fruits? (1)

Value based:

     What does he want to express the society from the above act? (1)

Value points:

    *Awarenesss

    *Responsible towards community

    *Concern for public health

HOW DO LIVING ORGANISMS REPRODUCE

1. Sandra is in class VI. She felt uncomfortable on one fine day. Her elder sister Radha who is in class X is already guided by her mother regarding this and she guides Sandra

Contextual question

      What is the reason for Sandra’s discomfort? (1)

Value based:

    What values are exhibited by Radha ? (1)

Value points.

    *Awareness

    *Sense of responsibility

    *Concern for sister

2. Contextual question

Kala is married and has two children. She does not want any more children. Suggest two ways that she can be follow to avoid pregnancy. (2)

Value based:

 

       What values are exhibited by Kala? (1)

Value points

       *Awareness

      *Concern for reproductive health

      *Responsible citizen

3. Contextual question (2)

The population of a village was 10,000 in the year 2010. It has surprisingly increased to 15,000 in a year.As a village Panchayat doctor what measures would you suggest to the people of that village to control population?

Value based:

       What values will you try to inculcate in the villagers? (1)

Value points

      *Awareness of birth control measures

      *The importance of the health of an adult female

      *To have enough gap between two successive children.

4. Contextual question (2)

Imagine that you are a doctor who is specialized in Gynaecology. A married lady walked into your clinic for terminating her foetus which is 24 weeks old since the foetus is a female. Doctor advised her not to do so.

a. How is the sex of female child genetically determined?

Value based:

      bWhat values did the doctor try to inculcate? (1)

Value points

     *Awareness

     *Concern for girl child

     *Responsible towards community

     *To maintain female / male sex ratio

5. Rina went to her friend’s house for vacation and she admired the beauty of the rose garden there. She planned to gift a rose garden to her parents for their anniversary next month.

Contextual question:

      What technique should she follow to get more number of plants before the anniversary? (1)

Value based:

      What values did Rina set? (1)

Value points

     *Sensitive to environment

     *Love and affection

 

     *Awareness

HEREDITY AND EVOLUTION

1. A village recorded highest cases of atrocities against women the health officer of the village organised a skit to convey the fact that women should not be purnished for the birth of a girl child. They should be given due respect in society. The villagers were greatly motivated.

CONTEXTUAL QUESTIONS

(i) What is the method of sex determination in humans? (1)

(ii) What are the sex chromosomes in males? (1)

VALUE BASED

(iii) What value was the officer trying to highlight through the skit? (1)

1. Awareness

2. Social Responsibility

3. Concern for women

2. Manu visited the hospital with her mother, where she observed a poster ‘Sex determination is a Crime’ She discussed the issue with her mother and realised that sex determination was banned as there was an increase in female infanticide across our country.

CONTEXTUAL QUESTIONS

(i) How can we determine sex of a baby? (1)

VALUEBASED QUESTIONS

(ii) What values are promoted by the hospital? (1)

1. Awareness

2. Social responsibility

3. Concern for female infants

4. Discrimination of gender

3. Anita had a huge scar on her cheek after she met with an accident during her school days. She is worried if her baby would inherit the scar she had acquired. Her doctor, a sincere medical practitioner explained and successfully convinced Anita.

CONTEXTUAL QUESTIONS

(i) What are acquired traits?(1)

(ii) How is it different from inherited traits?(1)

 

VALUE BASED QUESTIONS

(iii) Mention the values the doctor exhibits.(1)

1. Awareness

2. Social responsibility

3. Professional ethics

4. Mita observed that her grand mother was preparing a family tree. On enquiring why it was done, she explained that it was necessary to know our roots as we have inherited many traits from our ancestors. She also mentioned that many family values and traditions are no longer followed as joint families had disappeared?

CONTEXTUAL QUESTIONS

(i) Who are the earliest members of human species? (1)

(ii) Where have the earliest members emerged?

(iii) VALUE BASED QUESTIONS

(iv) What values do you think children would learn in a joint family?(1)

1. Sharing and caring

2. Respect for elders

3. Concern for others

4. Knowledge of any genetic disorders in the family

5.Madhu brought male and female dogs from London. She took great care and fed them well. After a few months they gave birth to four black puppies. She was surprised to find that the white colour of the female did not appear.

Contextual question (2)

        What could be the reason for the appearance of only black puppies?

Value based:

      What values were exhibited by Madhu through this act? (1)

Value points

    *Caring

    *Observant

 

    *Compassion for animals

REFLECTION AND REFRACTION

1. Vivek Sharma while driving his bike sees a woman behind driving a moped through his rear vew mirror. He sees that her saree almost touching the wheels of the vehicle. He stops her and alerts Contextual question What kind of mirror is used as a rear view mirror? Draw a ray diagram for the same mirror when the object is placed between pole and infinity her and she ties the saree properly.(2)

Value based question

        What values you observe in Mr. Sharma? (1)

Value points

1. Concern about others

2. Observation of Traffic rules

3. Responsible citizen.

2.Deepak’s mom is finding difficult to cook in the kitchen as there was power cut, and she was complaining about it to Deepak. He immediately took a plane mirror from his shelf made it stand against a wall such that sun’s rays were focussed into the kitchen due to the reflection of the mirror. There was some lighting and his mother was able to finish her work.

Contextual question

       What are the characteristics of the image formed by a plane mirror?(2)

Value based question

     What values did Deepak display? (1)

Value points

1.helping his mother

2. Is able to apply his mind at required times

3 Mrs Vincent, grade 5 teacher find that her students do not draw when she draws on the board. Every time she had to turn towards them to see whether they draw and label the diagrams. John, one of her students fixed two big convex mirrors at the two sides of the black board. With this Mrs. Vincent was able to draw and also supervise her students through the mirror. All the students did their work properly.

Contextual question

       A convex mirror has R= 3m . An object placed at 5m from this mirror , find the position and nature of the image.(2)

Value based question

      What values did John exhibit?(1)

Value points

1.Helping teacher and his peer group

2. application of knowledge

4 A boy is looking at the sun through a convex lens. His brother immediately takes away the lsns and explains why he shouldn’t do it.

Contextual question

       What happens when parallel rays of light fall on a convex lens. Draw a ray diagram and explain the rule, hence define principle focus of convex lens.(.5 +1.5)

Value based question

      What values does the brother show?(1)

Value points

1.concern for his brother

2.knowledge of precautionary measure

5 Kajal who has just begun to learn swimming is in the pool. Suddenly she finds her gold earing falling into the water. She feels that the earing has not gone too deep and she goes into the water to retrieve it..Her trainer observing this pulls her out.

Contextual question

        The letters appear raised when viewed through a glass slab. why? What is meant by lateral displacement in a glass slab. (1+1)

VALUE BASED QUESTION

       What value does the trainer show?(1)

Value points

1. Trainer concerned about the safety of the students

2. Presence of mind of the trainer, timely action.

6 Mala a class 10 student observes a slide in the bio-lab. She is not able to view clearly and seeks teachers help. The teacher adjusts the microscope and also explains how 2 lenses can be combined for effective viewing. With the teacher’s input, Mala combines a convex and concave lens and obtains an image on the screen. She was able to explain her friends the additive nature of power.

Contextual question

          Define SI unit of power. What is the power of lens whose focal length is +20cm.(2)

VALUE BASED QUESTION

          What value does Mala display? (1)

Value points

1.Is interested in sharing the acquired knowledge with her peer group

 

2. Team work

7 The class room was very dark due to the cloudy day. The teacher asked the students to switch on all the lights, as it was difficult to view the board for the students.

Contextual question

        How will the size of pupil change with brightness?

VALUE BASED QUESTION

        What value did the teacher exhibit?(1)

Value points

1.Awareness

2. concern for the students

8 Mr Ananth, was standing outside in the evening, enjoying the light drizzle after the rain. Suddenly he observed a rainbow in the sky. He called his father and asked him, what it is and how is it formed? His father explained him about its formation and also told him that a similar phenomena can be observed with prism also.

Contextual question

         What is the name of the phenomena? Which colour deviates more and why?(2)

VALUE BASED QUESTION

       What value did Ananth’s father exhibit?(1)

Value points

1.understanding

2. caring

9.. Ms. Vijaya, a maid servant of Ramji, complained that she was unable to read the magazines. Mr Ramji realising that she had an eye problem and took her to an eye doctor and got her eye checked. He also bought a new set of lenses for her.

Contextual question

        What is the name of the eye defect that Ms vijaya is suffering from? What type of lens did doctor prescribe to her? (2)

VALUE BASED QUESTION

       What value did Mr. Ramji exhibit?(1)

Value points

1. Kindness

2. Compassion

 

3. Concern for others

 Please refer to the link below for CBSE Class 10 Science VBQs - Integrated Science

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