Home Science Paper 1 Questions and Answers - Wahundura Boys Mock Examination 2023

Instructions

This paper consists of 3 sections A, B and C. Answer all questions in section A and B and any two from section C. All answers must be written in the answer booklet provided.
All Answers must be written in English

QUESTIONS

SECTION A COMPULSORY (40MKS)
Answer all questions in this section in the spaces provided

State the meaning of the term patching as used in repair of clothes. (2mks)
Give 2 reasons why clothes should be mended before washing (2mks)
Mention 3 factors influencing the choice of a color scheme for a bedroom (3mks)
Suggest 4 ways of preserving meat at home (2mks)
Mention 2 ways used to disinfect garments before washing (2mks)
Give 2 examples of self neatened seams that are worked on a school blouse (2mks)
Distinguish between a sprain and a fracture (2mks)
Mention 3 factors considered when choosing a method of cooking (3mks)
Outline 3 signs and symptoms of food poisoning at home (3mks)
Explain the meaning of the term fibre as used in clothing and textiles (1mk)
State 2 qualities considered when choosing dressmaker’s pins (2mks)
State the role of a tension disc on a sewing machine (1mk)
Suggest 2 handmade stitches that can be used to neaten the raw edge of a seam (2mks)
Outline 3 reasons for proper drainage at school (3mks)
Give 2 reasons why vitamin C should be adequate in the diet (2mks)
Give 2 reasons why convinience foods may be preferred at home (2mks)
Identify 2 methods of purifying water at home (2mks)
Identify 4 fat soluble vitamins (2mks)
Mention 2 problems experienced by consumers today (2mks)

SECTION B (20MKS)
COMPULSORY
Answer question 20 in the spaces provided;

You have been left at home to carry out tasks in preparation for guests intending to visit over the weekend
1. Describe the procedure you will follow to launder a white cotton tablecloth (8mks)
2. Describe the thorough cleaning of the fridge used to preserve some food items (7mks)
3. Describe the cleaning of a ceramic cup for use at the table (5mks)

SECTION C (40MKS)
Answer any two questions from this section in the spaces provided

1. Describe 3 characteristics of the buffet style of meal service (6mks)
2. Explain 4 points considered when buying a family house (8mks)
3. Describe 3 ways of improving breastmilk supply for a lactating mother (6mks)
1. Outline 3 reasons for interfacing a waistband (6mks)
2. Explain 3 reasons for sufficient lighting in the kitchen (6mks)
3. Outline 4 qualities of a good toilet brush (8mks)
1. Outline 3 reasons why consumers should not buy a cooker on hire purchase (6mks)
2. Describe 3 preparations done on a fabric before cutting out (6mks)
3. Describe 4 qualities of a good play item for a 2 year old child (8mks)

MARKING SCHEME

Section A

Meaning of the term patching as used in repair of clothes.
- A method of repairing garments by use of an extra piece(1) of fabric to cover a tear(1)
Reasons why clothes should be mended before washing
- To avoid further tear when washing
- For neatness
- To last long (any 2x1= 2mks)
Factors influencing the choice of a color scheme for a bedroom
- Existing interior décor
- personal tastes and preferences
- Desired effect
- Orientation of the bedroom (any 3x1= 3mks)
Ways of preserving meat at home
- Smoking use of honey
- Hanging on a meat safe/ drying deep frying
- Use of a fridge
- salting (any 4x1/2= 2mks)
Ways used to disinfect garments before washing
- Fumigation -use of chemical disinfectants/salt/dettol(2x1=2mks)
Examples of self neatened seams that are worked on a school blouse
- Machine fell/double stitiched
- french (2x1= 2mks)
Difference between a sprain and a fracture(2mks)
- Sprains occur when the victim steps on uneven ground leading to twisting(1) of the ligaments
- Fractures are broken bones(1) due to accidentall falls/ excessive impact on the bones
Factors considered when choosing a method of cooking
- time available
- Health condition of the consumers
- Equipment available
- Type of food to be cooked
- Fuel available (any 3x1= 3mks)
Signs and symptoms of food poisoning at home
- Abdominal discomfort/stomachache -Fever
- Diarrhoea -General body weakness/fatigue
- Vomiting Dizziness (any 3 x1= 3mks)
Meaning of the term fibre as used in clothing and textiles
- A hair like unit of raw material from which fabrics are made
Qualities to consider when choosing dressmaker’s pins
- Should be sharp -Smooth
- Should be rustless
- Should have a large head
- Have appropriate length/Long enough (any 2x1= 2mks)
Role of a tension disc on a sewing machine
- Controlls the tightness of the upper thread/thread for firm stitchery(1)
Handmade stitches that can be used to neaten the raw edge of a seam
- Overcasting
- Loop stitches/blanket stitches
Reasons for proper drainage at school
- Free the environment of dampness
- Prevent bad oduors
- Discourange breeeding of pests/disease causing microorganism
- For a neat environment/attractive/sightly/smart etc(any 3x1= 3mks)
Reasons why vitamin C should be adequate in the diet
- Facilitates absorption of iron/prevention of iron deficiency anaemia
- Boosts immunity against infections
- Maintenance of a healthy skin
- Normal growth in children
- Promote formation of a scar tissue after an injury/Faster recovery after an injury
- prevent scurvy (any 2x1= 2mks)
Reasons why convinience foods may be preferred at home
- Handy/used in a unexpected situation/emergency/quick snack
- Use less labour
- Use less fuel
- A person may learn a new skill/recipe easily
- Economical/no wastage on peelings, shelling, trimming etc
- Ensure avalability of a food out of season
- Sometimes have better color/more attractive due to addition of color(any 2x1= 2mks)
Methods of purifying water at home
- Decantation/sedimentation
- Filtration
- boiling
Examples of Fat soluble vitamins
- Vitamin A, D, E and K(1/2x4=2mks)
Problems experienced by consumers today
- Scarcity of resources
- Lack of information
- Inflation
- Lack of awareness on consumer rights (any 2x1=2mks)

Section B

1. laundry of a white cotton tablecloth
  - Collect(1/2) the necessary equipment and materials
  - Soak(1/2) for a while in cold water
  - Wash(1/2) in hot(1/2), soapy(1/2) water by friction(1/2) method
  - Rinse(1/2) in hot(1/2), water .Boil (1/2) to bleach
  - Final rinse(1/2) in cold(1/2) water containing laundry blue (1/2) to whiten
  - Squeeze out excess water
  - Dry(1/2) under the sun(1/2) on a line secured with pegs
  - Iron(1/2) while slightly damp(1/2) with a hot(1/2) iron
  - Air(1/2) to dry completely
  - Fold (1/2) and store(1/2)
  - Clean the equipment used(1/2) dry and store.(max 16x 1/2= 8marks)
2. Thorough cleaning of the fridge
  - Collect (1/2) the necessary equipment and materials
  - Defrost (1/2) the fridge
  - Remove all food containers(1/2), empty the food and wash the containers
  - Remove the movable shelves(1/2)and clean them .
  - Wipe(1/2) the inner surface(1/2), rinse(1/2) thoroughly with a cloth wrung from warm water, dry(1/2) with a clean dry cloth
  - Using a cloth and warm(1/2) soapy(1/2) water, wipe the outer surface(1/2) a section at a time overlapping them. Rinse (1/2) thoroughly with a cloth wrung from warm water, dry with a clean dry cloth
  - Return(1/2) the shelves.
  - Pack the shelves with unspoilt food (1/2).
  - Switch on (1/2) the power. Keep the door closed (1/2)
  - Clean the equipment (1/2) used dry and store(max 14x 1/2= 7marks)
3. Cleaning of a ceramic cup
  - Collect the necessary equipment (1/2) and materials
  - Wash (1/2) in warm(1/2) soapy(1/2) water with a sponge(1/2) /non-abrasive
  - Rinse(1/2) thoroughly(1/2) in clean(1/2) warm(1/2) water
  - Drip(1/2) dry(1/2) upside down(1/2) in an airly place
  - Buff(1/2) to shine with a lintless(1/2) /non fluffy/lintfree cloth
  - Store (1/2) appropriately
  - Clean the equipments (1/2) used,dry and store(max 10x 1/2= 5marks)

Section C

1. characteristics of the buffet style of meal service
  - Used to entertain a large number of guests
  - Crockery and cutlery are placed at the beginning of the serving area
  - The meals can be easily taken while standing or sitting
  - Guests help themselves to the food dishes they are willing to take or someone serves them
  - food is placed in chaffing dishes/foodwarmers (any 3x2=6mks)
2. Points considered when buying a family house
  - cost; affordable
  - Legal documents; available and without dispute
  - Appropriate design as per personal tastes
  - Size that can fit the family size and composition
  - Security; located in a safe place
  - Located near social amenities
  - Infrastructure should be available(any 4x2=8marks)
3. Ways of improving breastmilk supply for a lactating mother
  - balanced diet rich in calcium,vit D
  - Plenty of fluids such as soups, juices, porridge
  - peace of mind to stimulate milk let down(3x2= 6mks)
1. Reasons for interfacing a waistband
  - Give body and shape
  - Reinforce /strengthen the waistband
  - Increase crease resistance
  - For a Crisp tailored look
  - Obtain a good knife edge(3x2= 6mks)
2. Reasons for sufficient lighting in the kitchen
  - discourage breeding of pests which can spread germs
  - To be able to work efficiently as one clearly sees the tasks
  - Avoid eye fatigue due to strain in dim light
  - Avoid accidents due to insufficient light(any 3x2=6mks)
3. Qualities of a good toilet brush
  - Bristles firmly attached to the head to last long
  - Have enough bristles/closely packed for efficiency
  - Hard bristles to scrub efficiently
  - Smooth handle for comfort
  - Handle should be long enough for convinience in use
  - Strong bristles to last long/not to wear out easily (any 4x2=8mks)
1. Reasons why consumers should not buy a cooker on hire purchase
  - More expensive than cash due to interest
  - incase of default the seller may reposses the cooker
  - Ownership belongs to the seller untill the last instalment is made hence no freedom of ownership (3x2= 6mks)
2. Preparations on a fabric before cutting out
  - Pressing to remove creases
  - Stentering/pulling diagonally to straighten the threads
  - Graining so the garment is on straight threads
  - Checking factory defaults/stains
  - Confirming the size
  - Pre-shrinking
3. Qualities of a good play item
  - unpainted as paint is poisonous
  - Large enough to avoid swallowing
  - Smooth to avoid accidents
  - Appropriate weight for easy use
  - Suitable for the age
  - Suitable for the sex/gender
  - Washable/easy maintenance
  - Strongly attached so that parts do not easily come out (any 4x2=8mks)