ICSE Class 10 Home Science Board Exam Question Paper 2022 with Solutions

ICSE Class 10 Home Science Board Exam Question Paper 2022 with Solutions

SECTION A

Question 1.
Choose the correct answer to the questions from the given options. (Do not copy the question. Write the correct answer only.) [10]

(i) Action of food enzymes are the major cause of: [1 Mark]
(a) Contamination of food
(b) Deterioration of food
(c) Preservation of food
(d) Sanitation of food

Answer: (b) Deterioration of food

Enzymes naturally present in food lead to chemical changes causing spoilage and deterioration.

Teacher's Note:
a) Intrinsic enzymes cause ripening and subsequent deterioration if unchecked.
b) Do not confuse enzymatic action with microbial contamination.

(ii) Foods which undergo processing to increase their shelf life are called : [1 Mark]
(a) Convenient foods
(b) Non perishable foods
(c) Perishable foods
(d) Semi perishable foods

Answer: (a) Convenient foods

Processed foods designed for ease of use and extended shelf life are convenient foods.

Teacher's Note:
a) Processing adds value and increases stability.
b) Remember the classification based on perishability versus processing level.

(iii) ....... fabric gets stains if water is sprinkled on it during ironing. [1 Mark]
(a) Colored Cotton
(b) Silk
(c) White Cotton
(d) Wool

Answer: (b) Silk

Water droplets leave water-mark stains on silk fabrics due to uneven drying of weighted or fine silk threads.

Teacher's Note:
a) Silk requires special care during ironing and should generally be ironed with a dry iron at a low temperature.
b) Direct water sprinkling causes temporary water spots.

(iv) Colorless fluorescent dyes which turn pale fabrics while making them look brighter are called.......... [1 Mark]
(a) Bleach
(b) Blue
(c) Stiffening agents
(d) Optical Brighteners

Answer: (d) Optical Brighteners

Optical brighteners absorb UV light and re-emit blue light, making yellowed or pale fabrics appear whiter and brighter.

Teacher's Note:
a) They do not clean fabric; they alter light reflection.
b) Commonly added to modern laundry detergents.

(v) One of the major social issues prevalent in our country is: [1 Mark]
(a) Human capital
(b) Gender discrimination
(c) Morbidity
(d) Mortality

Answer: (b) Gender discrimination

Gender discrimination is a persistent social issue affecting equality and development in society.

Teacher's Note:
a) Human capital is an economic resource, whereas morbidity and mortality are health indicators.
b) Social issues involve societal prejudices and unequal treatment.

(vi) The impact of human activities on the environment and climatic change is called : [1 Mark]
(a) Carbon footprint
(b) Child labour
(c) Feticide
(d) Population explosion

Answer: (a) Carbon footprint

Carbon footprint measures the total greenhouse gas emissions caused directly and indirectly by human activities.

Teacher's Note:
a) It is expressed in equivalent tons of carbon dioxide.
b) Other options are social or demographic issues, not environmental impacts.

(vii) Scheme addressing the health care system at the primary, secondary and tertiary levels in our country is : [1 Mark]
(a) Ujwala Yojna
(b) Ujwala Bharat
(c) Jan Dhan Yojna
(d) Ayushman Bharat

Answer: (d) Ayushman Bharat

Ayushman Bharat is designed to address healthcare holistically across primary, secondary, and tertiary care systems.

Teacher's Note:
a) Pradhan Mantri Jan Arogya Yojana (PM-JAY) is a key component of Ayushman Bharat.
b) Ujjwala Yojana relates to LPG cylinder distribution.

(viii) Pamphlets are used effectively for : [1 Mark]
(a) Event announcement
(b) Flash mob
(c) Puppet shows
(d) Street plays

Answer: (a) Event announcement

Pamphlets are printed informational sheets widely distributed for announcing events or spreading awareness.

Teacher's Note:
a) Flash mobs, puppet shows, and street plays are performance arts and live communication aids.
b) Pamphlets belong to print media.

(ix) The following scheme aims to safeguard the health of women by providing fuel without any emissions : [1 Mark]
(a) BPL
(b) LPG
(c) PM JAY
(d) PMUY

Answer: (d) PMUY

Pradhan Mantri Ujjwala Yojana (PMUY) provides clean cooking fuel (LPG) to women from below-poverty-line households.

Teacher's Note:
a) LPG is the fuel itself, while PMUY is the scheme name.
b) PMJAY is for health insurance coverage.

(x) ...........are visually appealing documents designed in a threefold format conveying information briefly and effectively. [1 Mark]
(a) Flyers
(b) Leaflets
(c) Brochures
(d) Pamphlets

Answer: (c) Brochures

Brochures are folded informational documents, often in a tri-fold format, used for concise communication.

Teacher's Note:
a) Flyers and leaflets are typically single-sheet unfolded documents.
b) Note the specific structural description given in the question (threefold format).

SECTION B

(Answer any four questions from the section.)

Question 2.

(i) List any two reasons for drawing an outline ( of a woollen garment prior to laundering it. [2 Marks]

Answer:
1. To maintain the original shape and size of the woolen garment during and after washing.
2. To help in stretching or pinning the garment back to its correct dimensions while drying (blocking).

Teacher's Note:
a) Wool fibers shrink and distort easily when wet.
b) Tracing the outline on paper before washing serves as a reliable guide during reshaping.

(ii) Mention any two disadvantages of using soap for washing clothes. [2 Marks]

Answer:
1. Soaps react with calcium and magnesium ions in hard water to form an insoluble scum, which sticks to clothes and dulls their appearance.
2. Soaps are alkaline in nature and can damage delicate protein fibers like silk and wool.

Teacher's Note:
a) Soap scum wastes cleaning power and makes rinsing difficult.
b) Synthetic detergents do not form scum in hard water.

(iii) Explain any three criteria employed while washing clothes by kneading and squeezing method. [3 Marks]

Answer:
1. Fabric Type: Used exclusively for delicate fabrics like silk, wool, and rayon that cannot withstand vigorous rubbing or twisting.
2. Gentle Action: The clothes are gently pressed and released in soapy water without wringing or scrubbing to prevent fiber breakage and stretching.
3. Water Temperature: Lukewarm or cold water is generally employed to avoid shrinkage and damage to delicate textiles.

Teacher's Note:
a) Kneading and squeezing mimics hand pressure without abrasive friction.
b) State all three criteria clearly to secure full marks.

(iv) State any three precautions taken while laundering coloured garments. [3 Marks]

Answer:
1. Test for colorfastness before washing by dampening a hidden corner of the garment and pressing it against a white cloth.
2. Wash colored clothes separately from white clothes to prevent bleeding and transfer of dyes.
3. Dry colored garments in the shade (inside out) rather than in direct harsh sunlight to prevent fading.

Teacher's Note:
a) Never use strong bleaching agents on colored clothes unless they are color-safe.
b) Quick washing and thorough rinsing help preserve brightness.

Question 3.

(i) Mention the method followed to wash the following fabrics : [2 Marks]
(a) Cotton (b) Nylon

Answer:
(a) Cotton: Friction method (scrubbing and kneading or machine washing).
(b) Nylon: Kneading and squeezing method (gentle washing).

Teacher's Note:
a) Cotton is a strong cellulosic fiber that withstands rubbing.
b) Nylon is synthetic and can easily catch static or distort with harsh rubbing, so gentle washing is preferred.

(ii) List two benefits of applying starch to cotton garments. [2 Marks]

Answer:
1. It imparts a crisp, fresh finish and smooth appearance to the garment.
2. It forms a protective coating on the fabric surface that prevents dirt from penetrating deep into the fibers.

Teacher's Note:
a) Starching makes ironing easier and helps clothes stay clean longer.
b) Commonly used on cotton and linen items.

(iii) State three advantages of using detergents for laundry. [3 Marks]

Answer:
1. They work efficiently in both hard and soft water without forming insoluble scum.
2. They possess superior wetting and penetrating power compared to soap.
3. They are effective across a wide range of water temperatures, including cold water.

Teacher's Note:
a) Detergents are synthetic surface-active agents (surfactants).
b) Emphasize water hardness versatility as a key advantage.

(iv) Mention three ways by which dirt can be harmful to a fabric. [3 Marks]

Answer:
1. Sharp dirt and grit particles act abrasively, cutting and wearing down textile fibers during movement or washing.
2. Accumulated dirt attracts moisture and insects, leading to fiber rotting and mildew growth.
3. Dirt spoils the appearance, causes foul odors, and discolors the fabric permanently if left unwashed.

Teacher's Note:
a) Regular laundering extends garment life by removing abrasive dust.
b) Mention mechanical, biological, and aesthetic damages caused by dirt.

Question 4.

(i) State two major causes of food spoilage. [2 Marks]

Answer:
1. Action of microorganisms (bacteria, yeasts, and molds).
2. Action of natural food enzymes present within the food.

Teacher's Note:
a) Microorganisms multiply rapidly under favorable moisture and temperature conditions.
b) Insects and rodents also contribute significantly to food spoilage.

(ii) Define the term 'semi-perishable food'. [2 Marks]

Answer:
Semi-perishable foods are food items that have a longer shelf life than highly perishable foods and can last for several weeks or months if stored properly under suitable environmental conditions without rapid spoilage (e.g., potatoes, onions, root vegetables, and certain processed foods).

Teacher's Note:
a) Contrast with perishable foods (milk, meat) which spoil within days.
b) Mention proper storage requirements in the definition.

(iii) Mention any three principles of food hygiene. [3 Marks]

Answer:
1. Prevention of contamination of food from pathogens, chemicals, and foreign objects.
2. Maintenance of personal cleanliness and hygiene by food handlers (handwashing, clean aprons).
3. Proper temperature control during food storage, preparation, and cooking to inhibit bacterial growth.

Teacher's Note:
a) Food hygiene is crucial for preventing foodborne illnesses.
b) Cleanliness of utensils and working surfaces is also a core principle.

(iv) Mention any three precautions to be followed while storing fruits and vegetables. [3 Marks]

Answer:
1. Store fruits and vegetables in cool, well-ventilated areas or in appropriate refrigerator compartments.
2. Do not wash fresh produce before storing unless necessary, as excess moisture encourages mold and bacterial growth.
3. Remove bruised or spoiled items immediately to prevent them from contaminating healthy produce.

Teacher's Note:
a) Ethylene-producing fruits should be stored separately from sensitive vegetables.
b) Proper air circulation prevents premature rotting.

Question 5.

(i) Why should foods with high sugar content be stored in air tight containers? [2 Marks]

Answer:
1. High sugar foods are hygroscopic in nature and absorb moisture from the surrounding air, leading to lump formation or stickiness.
2. Airtight containers prevent infestation by insects, ants, and pests that are attracted to sugar.

Teacher's Note:
a) Moisture absorption also creates favorable conditions for mold growth.
b) Airtight sealing preserves the texture and quality of sugary items.

(ii) State any two uses of spices during food preservation. [2 Marks]

Answer:
1. Many spices possess natural antimicrobial and antioxidant properties that inhibit bacterial growth and delay rancidity.
2. Spices like salt, turmeric, and mustard act as direct preservative agents in pickles and preserves.

Teacher's Note:
a) Beyond imparting flavor, spices have historically served preservative functions.
b) Mention both antimicrobial and antioxidant actions.

(iii) State three benefits of hygienic storage of food. [3 Marks]

Answer:
1. Prevents contamination by pests, dust, and harmful microorganisms, ensuring food safety.
2. Preserves the nutritional value, flavor, aroma, and texture of the food over time.
3. Minimizes food wastage and financial loss caused by spoilage.

Teacher's Note:
a) Hygienic storage is vital for household health and food security.
b) Covers health, economic, and sensory benefits.

(iv) Mention three advantages of preservation to the food industry. [3 Marks]

Answer:
1. Extends the shelf life of seasonal foods, enabling year-round availability and stable marketing.
2. Facilitates easy transport and distribution of perishable food items over long distances.
3. Increases economic returns for farmers and food processors by preventing glut and post-harvest losses.

Teacher's Note:
a) Food processing and preservation drive commercial food industries.
b) Emphasize availability, transportability, and loss reduction.

Question 6.

(i) State any two reasons for a plant or animal species getting extinct. [2 Marks]

Answer:
1. Habitat destruction and deforestation due to human expansion and industrialization.
2. Overexploitation, poaching, and illegal hunting of wildlife.

Teacher's Note:
a) Climate change and pollution also contribute significantly to extinction.
b) Anthropogenic factors are the primary cause of modern extinction rates.

(ii) Define the term 'human trafficking'. [2 Marks]

Answer:
Human trafficking is the recruitment, transportation, transfer, harboring, or receipt of persons by means of threat, use of force, abduction, fraud, or deception for the purpose of exploitation (such as forced labor, servitude, or commercial sexual exploitation).

Teacher's Note:
a) It is a grave violation of human rights.
b) Include both the means (force/fraud) and the end purpose (exploitation) in the definition.

(iii) Write a short note on Gender discrimination. [3 Marks]

Answer:
1. Gender discrimination refers to unequal treatment or perception of individuals based on their gender, which often disadvantages women and girls in society.
2. It manifests in various forms such as unequal wages, preference for male children, restrictions on education and career opportunities, and domestic inequality.
3. It hinders overall national development, social justice, and human rights, making gender equality a crucial global goal.

Teacher's Note:
a) Discuss both social and economic manifestations.
b) Highlight the importance of gender equality for societal progress.

(iv) Mention any three eligibility criteria for an Indian citizen to avail PMUY. [3 Marks]

Answer:
1. The applicant must be an adult woman belonging to a Below Poverty Line (BPL) household.
2. The household should not already own an LPG connection under any previous government scheme.
3. The applicant's name must appear in the Socio-Economic Caste Census (SECC) database or be part of identified vulnerable beneficiary categories.

Teacher's Note:
a) PMUY stands for Pradhan Mantri Ujjwala Yojana.
b) State precise administrative criteria required for scheme eligibility.

Question 7.

(i) List any two factors to be considered while designing a poster. [2 Marks]

Answer:
1. Bold, catchy, and concise title/slogan that conveys the core message instantly.
2. Clear visual layout with appropriate color contrast and readable lettering size.

Teacher's Note:
a) Posters must grab attention from a distance.
b) Cluttered text should be avoided.

(ii) Mention any two venues for a street play. [2 Marks]

Answer:
1. Marketplaces and busy street corners.
2. Public parks or community centers.

Teacher's Note:
a) Street plays (Nukkad Natak) require open spaces where large public gatherings naturally occur.
b) Accessibility to a broad audience is the primary venue selection criterion.

(iii) List any three benefits of communication aid. [3 Marks]

Answer:
1. Enhances message clarity and understanding through visual or auditory reinforcement.
2. Captures and sustains the audience's attention during awareness campaigns or educational programs.
3. Overcomes language and literacy barriers, making information accessible to diverse groups of people.

Teacher's Note:
a) Communication aids include posters, audio-visual media, and street plays.
b) Focus on retention and comprehension benefits.

(iv) Name any three forms of puppets used for a puppet show. [3 Marks]

Answer:
1. Glove or Hand puppets
2. String puppets (Marionettes)
3. Rod puppets (or Shadow puppets)

Teacher's Note:
a) Puppetry is an effective traditional medium for mass communication and education.
b) Name three distinct categories clearly to earn full marks.