Home Science Paper 1 Questions and Answers - Form 4 Term 3 Opener Exams 2023

SECTION A – 40 MARKS

State two benefits of Home science to the community. (2mrks)
Name two commonly used types of vacuum cleaners. (2mrks)
Mention two advantages of owning a house. (2mks
Suggest three preventive measures against cholera. (3mrks)
State two properties of second class proteins (2mrks)
Point out three dangers of excess weight gain during pregnancy. (3mrks)
Give two situations when a lactating mother produces little or no milk at all. (2mrks)
Point out three importances of adverts to consumers. (3mrks)
Give two functions of cholecalciferal in the body. (2mrks)
Name four known methods of serving meals at home. (2mrks)
List down two main determinants of safe parenthood (2mrks)
Highlight on two advantages of hire purchase (2mrks)
State two functions of pressing clothes. (2mrks)
Give two qualities of to look for when choosing a tape measure. (2mrks)
Differentiate between food fortification and food supplements. (2mrks)
Mention two situations that may affect a budget. (2mrks)
State three disadvantages of consuming canned foods (3mrks)
Point out two roles played by eggs in flour mixtures. (2mrks)

SECTION B 20MKS (COMPULSORY)

1. Explain how to go about each of the following tasks..
  Cleaning a paraffin stove
  Collect the equipment and material required.
2. Launder your nylon raincoat in readiness for camping (7mks)
3. Clean an aluminum cooking pan (4mks)

SECTION C (40MKS)

Answer only 2 out of the 3 questions in this section.

1. Explain five properties that make polyester fabric suitable for making school uniforms. (10mrks)
2. Outline five reasons why weaning a baby too early is discouraged. (5mrks)
3. Explain five points to consider when choosing colours in a room. (5mrks)
1. Outline five points to bear in mind when choosing and purchasing furniture. (5mrks)
2. List down five qualities of a well made collar (5mrks)
3. Point out five ways in which the consumers right may be violated by sellers or manufacturers. (5mrks)
4. Outline five dangers associated with poor ventilation in a house. (5mrks)
1. Using relevant diagrams, give the procedure for making a double stitched or machine fell seam. (10mrks)
2. Point out five qualities of a good disinfectant. (5mrks)
3. Explain five factors to consider when planning and serving meals for children. (5mrks)

MARKING SCHEME

State two benefits of Home science to the community. (2mrks)
- One acts as a role model.
- Renders services to the nation.
- Acts as a resource person in the relevant areas eg. diet.
Name two commonly used types of vacuum cleaners. (2mrks
- Flat bottom
- Cylindrical
- Round
Mention two advantages of owning a house. (2mks)
- Offers a sense of belonging and ownership
- Can be used as security for loans.
- It is an investment itself.
Suggest three preventive measures against cholera. (3m)
- Proper disposal of human waste to prevent water contamination.
- Locate latrines away from water sources.
- Treat/boil water for domestic use.
- Infected persons should be treated.
- Equip. used by patients should be isolated & sterilized.
State two properties of second class proteins (2mrks)
- They lack one or more of the essential amino acids.
- Are commonly obtained from plant sources except soya beans.
Point out three dangers of excess weight gain during pregnancy. (3mrks)
- Can cause stretch mark.
- Can cause varicose veins.
- Increase fatigue in an exp. Mother.
- It increases risk of H.B.P.
- The foetus becomes too big & leads to complicated delivery.
- May be difficult to reduce wt. even after delivery.
Give two situations when a lactating mother produces little or no milk at all. (2mrks)
- Poor diet.
- Emotional stress.
- Insufficient rest.
- Lack of sleep.
Point out three importances of adverts to consumers. (3mrks)
- Informs on availability of goods & services.
- Quick & effective way of information about a new product.
- Provides info on varieties on products.
- A good advert. Provides additional info about a product.
Give two functions of cholecalciferal in the body. (2mrks)
- Formation of strong bones & teeth.
- Prevents occurrence of rickets in children and osteomalacia in adults.
Name four known methods of serving meals at home. (2mrks)
- Plate service.
- Family table
- Buffet
- Tray
List down two main determinants of safe parenthood (2mrks)
- Meeting the nutritional needs of the exp. Mother
- Social prep. Of the exp. Mother
- Psychological prep.
- Correct age of the parents.
- HIV (VCT) test.
Highlight on two advantages of hire purchase (2mrks)
- The consumer is able to get immed. Use of the article.
- Consumer requires the item after paying a deposit.
- One receives other services like repair & maintenance upon payment.
- One is able to buy items that they would have managed by savings
- Purchase of a durable item becomes an immediate saving for the family.
State two functions of pressing clothes. (2mrks)
- Removes creases.
- Restores them to original shape.
- Ensures complete drying of articles .
Give two qualities of to look for when choosing a tape measure. (2mrks)
- Should be clearly marked on both sides
- Metalic ends.
- Firmly woven and plastic coated to avoid fraying and stretching.
Differentiate between food fortification and food supplements. (2mrks)
- Food fortification:- Introduction or addition of food nutrients into a give food while food supplements are alternative sources of food nutrients.
Mention two situations that may affect a budget. (2mrks)
- Loss of income.
- Increase in income.
- Change in personal/family goals.
- Lack of commitment in following it.
- Inflation.
State three disadvantages of consuming canned foods (3mrks)
- The process may ate the texture & flavour.
- High temps,. Use damage vits. B group.. lowering the nut value.
- Can cause food poisoning or a result of any flaw in the container.
Point out two roles played by eggs in flour mixtures. (2mrks)
- Add nutritive value.
- Improves flavour.
- Improves colour
- Aeration.
- Used as a raising agent/traps air.

SECTION B 20MKS (COMPULSORY)

1. Explain how to go about each of the following tasks..
  Cleaning a paraffin stove
  Collect the equipment and material required.
  - Protect the working surface
  - Remove the movable parts
  - Empty he paraffin
  - Remove the wicks
  - Dust with a dry duster
  - Wash using warm soapy water
  - Remove stains using mild abrasive
  - Rinse severally using warm water
  - Dry with a clean dry cloth
  - Buff to shine
  - Wash the wicks in hot soapy water
  - Rinse in warm water
  - Final rinse in cold water
  - Dry in the sun
  - Trim the wicks
  - Refill
  - With paraffin
  - Replace the wicks and the movable parts
  - Cleaning all equipment used and store appropriately. (9mks)
    Any well written points ,systematically.
2. Launder your nylon raincoat in readiness for camping (7mks)
  - Soak (½) in cold water (½) for a short time
  - Wash in warm soapy water (½) using kneading and squeezing method (½) to remove all traces of dirt(½)
  - Rinse severally in warm water(½)
  - Rinse in cold water (½)
  - Add frabric conditioner in the final cold cold rinse (1/2)
  - Drip dry (½) in the shade (½)
  - Iron using warm iron (½)
  - Air to dry completely (½)
  - Fold (½) and store in a clean dry place (½)
3. Clean an aluminum cooking pan (4mks)
  - Rinse/soak in clean water
  - Clean in warm soapy water using abrasive/steel wool.
  - Clean in the same direction
  - Rinse in warm water
  - Wipe to dry using non fluffy dish cloth or drip on a rack then dry later.

SECTION C (40MKS)

Answer only 2 out of the 3 questions in this section.

1. Explain five properties that make polyester fabric suitable for making school uniforms. (10mrks)
  - It is strong and hardwearing, thus can withstands frequent washing.
  - Takes dyes easily ; available in different colours required.
  - Easy to launder – stains are easily
  - Removed, withstands most cleaning agents
  - User friendly coz. It Is resistant to shrinking & abrasion, creasing and stretching
  - Requires little or no ironing.
2. Outline five reasons why weaning a baby too early is discourged. (5mrks)
  - The baby’s digestive system is not able to process the new foods.
  - May lead to stomach upsets.
  - Denies the baby bonding with the mother.
  - Weaning foods may not be well balanced hence gets inadequatw nutrients for proper growth.
  - It may reduce the frequency of breastfeeding.
  - Baby may refuse the food.
3. Explain five points to consider when choosing colours in a room. (5mrks)
  - Use of the room: - well explained.
  - Effect desired
  - Personal taste
  - The size of the room
  - The existing décor.
1. Outline five points to bear in mind when choosing and purchasing furniture. (5mrks)
  - The furniture should be made from a longlasting/ durable material to withstand wear and tear
  - Strongly and firmly constructed.
  - The height should be comfortable.
  - Of affordable cost.
  - Size should correspond with the size of the room.
  - The colour should match the colour scheme of the room.
2. List down five qualities of a well made collar (5mrks)
  - Should be made of the correct size and shape.
  - Should lie flat and smooth on the neckline.
  - Should be symmetrical on both sides
  - The corners should be well rounded and should have a good knife edge.
  - Should be neatly stitched a d topstitched.
  - Should be interfaced on the undercollar.
3. Point out five ways in which the consumers right may be violated by sellers or manufacturers. (5mrks)
  - Charging unfair prices of goods and services
  - Providing goods of substandard quality.
  - Hoarding of goods by some sellers
  - False and incorrect adverts,selling goods that are not sage eg. expired food products etc.
4. Outline five dangers associated with poor ventilation in a house. (5mrks)
  - Suffocation due to inadequate supply of oxygen.
  - Eases in spread of communicable diseases
  - Discomfort that may be caused by heat and humidity.
  - Fainting caused by lack of 0₂
  - Drowsiness, leading to accidents and injuries.
1. Using relevant diagrams, give the procedure for making a double stitched or machine fell seam. (10mrks)
  - Place 2 pcs of fabric w.w facing and F.L matching., pin and tack along the F.L
  - Remove tacking and press
  - Trim back turning to 6MM and the front one over to the back to form the fell.
  - Press the fell to lie on the back of the garment.
  - Tack and machine close to the fold thro’ the layers.
  - Remove tacking and press the complete seam.
  - Explanation - 7mks
  - Diagrams - 3mks (10mks)
2. Point out five qualities of a good disinfectant. (5mrks)
  - Kills a wide variety of germs.
  - Chemically stable and affective.
  - Penetrates well into cracks.
  - Does not affect the person using it
  - Has a pleasant smell.
  - Is aesthetically acceptable/good colour.
3. Explain five factors to consider when planning and serving meals for children. (5mrks)
  - The diet should be balanced.
  - Provide variety of food from which they can choose.
  - Should have crunchy and crispy foods that require plenty of chewing .
  - Serve in small quantities to encourage 2ndhelping
  - Present attractive for enjoyment.
  - Serve at regular intervals and punctually.
  - Give fluids live clean boiled water and fruit juices to acid digestion and to replace lost fluid during play.