Home Science Paper 1 Questions and Answers - MECS Pre Mock Exams 2023

Instructions to Candidates

1. This paper consists of three sections A, B and C
2. Answer all the questions in section A and B and any other two questions from section C
3. Answers must be written in the spaces provided
4. Candidates should check the question paper to ascertain that all the pages are printed as indicated and that no questions are missing
5. Candidates should answer the questions in English 

For Examiners use only

QUESTIONS

SECTION A 40MKS
Instructions: Answer ALL questions in this section in the spaces provided

1. Define the term control of fullness       (1mks)
2. Identify two ways of meeting the social needs of the sick at home (2mks)
3. Highlight one reason for washing woolen garments when immersed in water  (1mk)
4. State two ways in which a neglected kitchen bin could lead to infections 2mks
5. Differentiate between needs and wants (2mks)
6. State two conditions that can make breastfeeding difficult (2mks)
7. Identify two types of knives used in the kitchen and their functions (2mks)
8. State one characteristic of persuasive advertising (1mk)
9. Give two reasons for food fortification (2mks)
10. Maroke Girls High school is doing a laundry practical The following is noticed by one of the students after drying the clothes: stains on the clothes, discoloration on some parts of the garments and a bad smell
    1. State the possible reason for the above observation (1mk)
    2. Suggest two suitable solutions for the above observation (2mks)
11. State two qualities of a good stitch (2mks)
12. Mention four ways of neatening an open seam (2mks)
13. State two factors to consider in the choice of a tracing wheel (2mks)
14. List four body measurements required when making a pair of trousers (2mks)
15. Highlight two ways of preventing poisoning at home (3mks)
16. Differentiate between corns and bunions (2mks)
17. Name 2 nutritional disorders associated with lack of calcium in the body (2mks)
18. Give two ways of preventing tooth decay (2mks)
19. State two advantages of budgeting (2mks)
20. Identify four clothes improvised facilities (2mks)
21. State two factors to consider when choosing a zip (2mks) 

SECTION B (20MKS)  COMPULSORY
Answer the following questions in the spaces provided

22. You are taking care of your aunt who is suffering from scabies
    1. Giving reasons explain how you will launder her pair of white cotton bed sheets  (8mks)
    2. Outline the procedure you will follow to clean your own pair of plastic shoes (7mks)
    3. Explain how you will clean her porcelain plate        (5mks) 

SECTION C 40MKS
Choose TWO questions from this section and answer in the spaces provide below

23.                  
    1. Explain three precautions to observe when managing a burn at home (6mks)
    2. Discuss three ways of ventilating a house using windows    (6mks)
    3. Explain four principles of food preservation (8mks)
24.              
    1. Explain four reasons for appropriate lighting in a house (8mks)
    2. Describe three ways of improvising cleaning materials at home (6mks)
    3. Explain three points you would consider when planning a meal for an invalid (6mks
25.              
    1. George a Form four candidate has been failing his examination due to poor     laying out of patterns and cutting Explain three points that he should observe (6mks)
    2. Explain three advantages of stewing as a method of cooking (6mks)
    3. Discuss four activities that take place at the antenatal clinic (8mks)

MARKING SCHEME

1. Definition of the term control of fullness 1x1=1 mks
   • Arrangement of extra size of fabric.
2. Ways of meeting the social needs of the sick at home
   • visiting the patient often and talking with them not talking to them
   • Not allowing people the sick would not like to see to visit them.
   • void isolating the sick unless necessary as it makes them feel unwanted.
   • ngage the sick in social activities and functions. any 2x1=2mks
3. Reason for washing woolen garments when immersed in water
   • To avoid stretching hence lose shape. 1x1=mks
4. Ways in which a neglected dustbin could lead to food contamination
   • If the dustbin is not properly emptied
   • breeding place for some pest e.g cockroaches any 2x1=2mks
5. Difference between needs and wants
   • Needs are essential items one cannot do without in life while wants are items required by a person but one can do without them any 2x1=2mks
6. State two conditions that can make breastfeeding difficult
   • When the mother is too ill to breastfeeding
   • When the mother is HIV positive
   • Baby’s refusal to breastfeed. any 2x1=2mks
7. Types of knives used in the kitchen and their functions
   • Bread knife-for spreading butter on bread/trimming cakes
   • Palette knife-For spreading pastry
   • Butchers knife-cutting bony meat
   • Paring knife-cutting vegetables and peeling fruits any 2x1 = 2mks
   • Kitchen knife-all food preparation processes
8. Characteristic of persuasive advertising
   • Persuades the consumer into believing that the product or service being advertised is better than the other they already know of similar purpose. 1x1=1mks
9. Reasons for food fortification
   • Improves he nutritive value of food
   • Enhances the flavor of the food.
   • Prevents nutritional deficiency disorders. any 2x1=2mks
10.                  
    1.                      
       • Reason for the above observation
       • poor rinsing of clothes 1x1=1mks
    2.                  
       • Suitable solutions for the above observation
       • Proper rinsing of clothes in clean water.
       • complete drying of clothes after washing and after finishing any 2x1=2mks
11. Qualities of a good stitch
    •  correct tension
    • Straight stitching
    • fastened at the beginning and the end
    • enhance interior decoration any 2x1=2mks
12. Ways of neatening an open seam
    • loop stitching
    • overcasting
    • binding/use of a crossway strip
    • edge stitching any 2x1 =2mks
13. State two factors to consider in the choice of a tracing wheel
    • The handle should be smooth not to hurt the user.
    • The wheel should be serrated for easy tracing any 2x1=2mks
14. Body measurements required when making a pair of trousers.
    • Waist
    • Hips
    • Inner trouser length
    • Outer trouser length
    • Crotch depth any 2x1 =2mks
15. Ways of preventing poisoning at home.
    • Do not store chemicals and dry cleaning agents near food
    • Keep medicine and all chemicals out of children’s reach
    • Follow the basic instructions on use of medicine any 2x1=2mks
16.  Difference between corns and bunions
    • Corn form where the shoes press against the skin while bunions form on the toes joints especially the big toe due to ill-fitting shoes. any 2x1=2mks
17. Nutritional disorders associated with lack of calcium in the body
    • Rickets in children
    • Osteomalacia in adults any 2x1 =2mks
18. Ways of preventing tooth decay
    • brushing teeth at least twice per day
    • Avoid taking sweet foods
    • Occasionally visit a dentist. any 2x1=2mks
19. Two advantages of budgeting
    • avoids impulse buying
    • ensures saving for the future any 2x1 =2mks
20. Four clothes’ improvised storage facilities
    • Carton boxes -clothes baskets -nails on the wall -a string from one wall to another
    • a carton with a lid any 4x1/2 = 2mks
21. Two factors to consider when choosing a zip to fix on a garment
    • same color with the garment
    • correct length to ease wearing and removal of the garment
    • correct weight in relation to the weight of the garment.
22.                  
    1. laundering a white cotton bed sheet
       • collect equipment and materials required 1/2
       • Wear protective gloves1/2 to prevent contracting the disease
       • Soak 1/2 in cold disinfected 1/2 water to loosen dirt and kill germs1/2
       • Wring 1/2 out of the soaking water
       • Wash 1/2 in hot soapy water using friction 1/2 method
       • rinse 1/2 thoroughly in hot clean water to remove soap and dirt 1/2
       • Final rinse in cold 1/2water to freshen the fabric 1/2
       • Wring 1/2 out as much water as possible
       • Dry 1/2 under direct sunlight1/2
       • Iron 1/2while still slighlty damp 1/2using a hot iron1/2
       • air to dry completely1/2
       • Fold and store appropriately1/2’
       • clean equipment used, dry and store appropriately1/2 max 16x1/2= 8mks
    2. Cleaning a pair of plastic shoes
       • collect equipment and materials required 1/2
       • dust if dusty or remove mud if muddy 1/2
       • clean1/2 using warm/hot soapy 1/2water and a soft brush 1/2starting from inside to outside 1/2
       • Rinse 1/2 thoroughly in clean warm/hot water 1/2
       • Final rinse in cold water 1/2
       • flick 1/2to remove as much water as possible
       • dry1/2 under a shade 1/2slightly inclined1/2
       • store appropriately 1/2
       • Clean equipment used, dry and store appropriately ½ max 14x1/2= 7mks
    3. Cleaning a porcelain plate (5mks)
       • collect equipment and materials required 1/2
       • Rinse 1/2 off any food remains in cold water.
       • Clean 1/2 in hot 1/2 soapy water using a sponge 1/2
       • Rinse 1/2thoroughly in clean hot 1/2 water
       • drip-dry1/2 on a dish rack1/2 /wipe
       • Buff1/2 to shine with a non-fluffy cloth 1/2
       • store appropriately1/2
       • clean equipment used, dry and store appropriately1/2 (max 10x1/2 =5mks)
23.                      
    1. Precautions to observe when managing a burn at home
       • Do not break the blisters as they become very painful and can lead to infections
       • Avoid exposing the burn to open air as the nerves endings come into contact with it and become very painful:
       • Avoid exposing the burn to a hot environment as it increases the pain.
         any 3x2=6mks
    2. Three ways of ventilating a room using windows
       • using horizontal pivoted windows:They open horizontally,half opens towards the outside and the other half towards the inside.
       • using vertically pivoted windows:They open vertically half of the window opens towards the inside and the other half towards the outside
       • Using glinding windows:They open by glinding mainly from side to side
       • Using Louvre windows:They open simultaneously letting in fresh air while preventing the raindrops from entering.
       • Using fanlight windows:They open towards the outside and let in fresh air.
    3. Principles of food preservation.
       • Removal of moisture .This inactivates germs and enzymes reducing their ability to cause spoilage.
       • Application of heat destroys micro=organisms that lead to food spoilage
       • Exclusion of oxygen makes it impossible for micro-organisms to grow and multiply.
       • Reducing the temperatures by freezing makes it impossible for micro-organisms to multiply and renders them inactive. It also inactivates the enzymes in food.
       • Adding sugar, salt acids and other chemical preservatives destroys the micro-organisms any 4x2 =8mks
24.                        
    1. Reasons for appropriate lighting in a house
       • enables efficiency in performance of tasks as there is clear visibility
       • Reduces fatigue when working as no shadows are casted that make an individual strain to see
       • Reduces accidents such as cuts and falls that result from poor visibility
       • Enhance interior decoration in a home which is achieved by using lighting fixtures that are decorative.
       • to avoid eye strain which occurs where different light intensities are used making the eyes strain to see.
         any 4x2=8mks
    2. Ways of improvising cleaning materials at home
       • charcoal crushed into fine particles and stored in a clean covered container
       • Sand is sieved and stored in a covered container
       • Rough leaves from non-poisonous plants are collected and crushed then stored in a covered container.
       • Sisal fibre is used together with soap, ash, charcoal and sand
       • Ash is sieved to remove unwanted particles then stored in a clean covered container. any 3x2=6mks
    3. Points to consider when planning a meal for an invalid
       • The meal should be balanced with plenty of protective foods for immunity and bodybuilding foods for repair of worn out body parts
       • The food should be attractively presented to stimulate appetite
       • The food should be served in small amounts and at regular intervals to stimulate appetite
       • As soon as the food is taken the utensils should be removed from the table to discourage houseflies.
       • Avoid cooking foods with strong flavorings and smells as they discourage the sick person.
       • Provide plenty of fluids in form of fresh fruit juices, soups and milk as they help in digestion.
         any3x2 =6mks
25.                  
    1. Points to observe when laying and cutting out pattern pieces
       • Study the symbols on the pattern to get the correct information on the laying of the pattern pieces.
       • Press the pattern pieces before laying to ensure that you get correct sizes of the prices that are cut out.
       • Lay the pattern pieces close and correct direction of the grain of fabric so as to save on the fabric.
       • When cutting use long cutting shears to have a smooth cut edge.
       • Cut the fabric along the indicated cutting line on the pattern leaving notches where indicated
         any 3x2=6mks
    2. Advantages of stewing as a method of cooking
       • There is no wastage as everything cooked is served
       • It needs little attention therefore other activities can be done at the same time
       • Fuel consumption is low as the heat is lowered during simmering
       • Stews are easy to digest and therefore suitable for invalids and the elderly
       • stews are tasty as the flavor is retained any 3x2=6mks
    3. Activities that take place at the antenatal clinic
       • The blood pressure is checked during every visit
       • Sugar and protein levels are checked in the urine to ensure that they are normal
       • Weight is checked to monitor the growth of the foetus and ensure that the expectant mother adds between 10-12kgs of her normal weight.
       • the blood group is checked to ascertain the Rhesus factor is negative and the level of hemoglobin is established.
       • incase the expectant mother is ill she is treated and advised on matters pertaining to her diet and hygiene. any 4x2 =8mks