KCSE HOME SCIENCE QUESTIONS AND ANSWERS - ATIKA SCHOOL

Give five possible causes of pre-mature birth.

2/6/2020

Give five possible causes of pre-mature birth.

STI’s/gonorrhea, syphilis;
anaemia;
smoking of tobacco;
low weight in pregnancy / poor weight gain in pregnancy;
alcohol intake;
poor nutritional status/malnutrition;
high levels of stress / shock/trauma/accidents;
cervical incompetence;
serious infections such as pneumonia, malaria;
use of hard drugs
use of un-prescribed medicine
performing difficult tasks;
hypertension/high blood pressure.

Explain four points to observe in the care of lighting fixtures.

2/6/2020

Explain four points to observe in the care of lighting fixtures.

Keep all lighting fixtures in good state of repair for efficiency and safety.
Dust lighting fixtures regularly to get rid of loose dirt.
Occasionally wipe with a damp cloth to remove marks.
Ensure that movable lighting fixtures such as table or floor lamps can stand stable to avoid accidents/keep in a safe place to avoid breakage/destruction.
Replace blown out bulbs promptly to ensure adequately light in each room.

Explain three reasons for providing appropriate lighting in a sickroom.

2/6/2020

Explain three reasons for providing appropriate lighting in a sickroom.

To give clear visibility for ease caring of the sick/to avoid accidents.
To avoid too dim a light that strains the eye of the sick.
To avoid glare that strains the eye of the sick.
To enhance interior decor making the room comfortable for the sick.
To ensure the light is well distributed to avoid fatigue/pests/germs.
To cheer the sick to promote quick recovery
To provide warmth to make the sick comfortable.

Mention two sources of light

2/6/2020

Mention two sources of light

Natural and artificial.
Any source of light e.g. sun, moon, candle.

Explain four factors to consider when setting a table.

2/6/2020

Explain four factors to consider when setting a table.

The number of people taking the meal as this determine the number of covers to be laid.
The meal to be served as this ensures that all the tableware is available.
Number of courses/dishes as this enables one to set the cover for the courses.
Tableware as this determines their placement.
Type of meal service as each type has its own way of laying the table.
The type of dinners determines the way of table setting e.g. ages, special needs.
A center piece should be available for beauty/enhance appetite.
Provide adequate space to avoid overcrowding for comfort.
Ensure the room is clean for hygiene.
The table cloth should be well laundered for neatness.
Table appointments should be clean for hygiene/enhance appetite.

Explain four advantages of using convenience foods.

2/6/2020

Explain four advantages of using convenience foods.

They save on time, labour and fuel as little cooking is required.
They are handy because they can provide a quick snack/meal incase of unexpected guests/travel/picnic/being busy/less time.
They are economical since there is no wastage in preparation such as trimming, peeling or shelling.
They are attractive since colour is added during processing:
Seasonal foods can be made available as they can be canned / dried is bottled.
Nutritional value is enhanced as some foods are fortified.
They are easily/readily available since they are found in many outlets.
They give a chance to try new recipes as instructions are laid/they are partially prepared.
They are less bulky therefore easy to store and shopping.

Identify the life style associated with each of the following nutritional disorders:

2/6/2020

Identify the life style associated with each of the following nutritional disorders:

Gout - High intake of alcohol and meat.
Anorexia Nervosa - refusal to eat in order to remain slender.
Hypertension - consumption of too much salt/stress.
Obesity - high consumption of junk f processed foods/high intake of carbohydrates/fatty foods/sedentary lifestyle/lace of exercise.

Differentiate between:Regenerated and synthetic fibres.

2/6/2020

Differentiate between:Regenerated and synthetic fibres.

Regenerated fibres are made from natural materials which are chemically treated while synthetic fibres are made from petroleum products and natural gases.
Regenerated fibres are natural materials treated with chemicals while synthetics are purely chemicals

Differentiate between:Casing and hem

2/6/2020

Differentiate between:Casing and hem

A casing has two rows of stitching while a hem has one.
A casing has an opening for inserting elastics/cords while a hem is a way of finishing a row edge.

Differentiate between:Wear and tear;

2/6/2020

Differentiate between:Wear and tear;

Wear is when a garment develops signs of weakness and thinning due to friction while a tear is a hole or straight cut on a garment caused by a strong pull / sharp object.

Explain three factors to consider when caring for a white nylon shirt.

2/6/2020

Explain three factors to consider when caring for a white nylon shirt.

Avoid exposure to direct sunlight as it will yellow.
Avoid rubbing as it piles.
Avoid high temperature as it destroys the fibre/melts/burns/scorch.
Do not bleach as it will turn yellow.
Wash separately from coloured garments to avoid discolouration.

Explain four points to consider when buying a sewing machine.

2/6/2020

Explain four points to consider when buying a sewing machine.

Consider cost in relation to the functions to be done and the best that can be afforded.
Buy one with a guarantee/warranty or after sales service.
Ensure all accessories/attachment are provided for efficiency in use.
Buy one that is not too complicated for the user for comfort/easy use/efficiency.
Buy from a reliable dealer who will be able to service/supply spare parts/guarantee.
Check whether it is for commercial or domestic use, if commercial buy a heavy duty one/buy according to use for efficiency/serve its purpose.
Ensure that there is a manual for use to guide on proper use and care.
Choose one that is versatile to give a variety of stitches and functions.
Check that it is in a working condition to avoid buying a faulty machine.
Buy the right size for the space available.
Buy that which can be afforded for satisfaction/not to strain you income.
Buy a machine with readily available spare parts for easy replace.

Outline the steps you would follow to thorough clean the dressing mirror you will use.

2/6/2020

Outline the steps you would follow to thorough clean the dressing mirror you will use.

Collect all the equipment and materials required
Remove dust using a dry cloth wipe /rub the mirror using a cloth wrung out of warm soapy water.
Rinse using a cloth wrung out of clean warm water.
Dry using a clean dry cloth/newspaper/sponge
Buff mirror using a soft clean dry non-fluffy/ lintless cloth / newspaper .
Clean equipment used and store appropriately .

You are planning to attend your sister’s pre-wedding party.Describe the procedure you would follow to launder a silk blouse/shin you intend to wear.

2/6/2020

You are planning to attend your sister’s pre-wedding party.Describe the procedure you would follow to launder a silk blouse/shin you intend to wear.

Collect all the equipment and laundry materials needed .
Shake to remove loose dust if any
Wash by kneading and squeezing in warm water using a mild detergent soapy.
Rinse several times/thoroughly in warm water with the final rinse in cold
water in which methylated spirit / vinegar has been added.
Squeeze/roll the blouse / shit. Dry/roll with a clean dry towel or
Dry under a shade on a clothes line secured with pegs / hanger.
Iron using a moderately hot/warm iron on the wrong side
Air to dry completely.
Fold/hang /store/keep
Clean equipment used and store appropriately.

Give two reasons why easing is commonly worked on the crown of a sleeve.

2/6/2020

Give two reasons why easing is commonly worked on the crown of a sleeve.

controls fullness;
gives a good fit.

State two functions of pockets in a garment.

2/6/2020

State two functions of pockets in a garment.

to hold items/keep/put)store;
decorative/beauty/attractive;
as a style feature/design.

List four undergarments made from elastomeric fabric.

2/6/2020

List four undergarments made from elastomeric fabric.

Garments made from elastomeric fabric include:
corsets;
bikers;
brassiers;
boob tops;
pants;
stocking / hosiery
camisoles;
petticoats;
boxers;
body suits;
briefs;
vests;
slips.

Outline three qualities of a well-made facing.

2/6/2020

Outline three qualities of a well-made facing.

A well-made facing should:
be visible on one side of the garment only;
be flat on the right and wrong sides;
be well knife edged;
have straight stitchery

What is the function of the fishbone stitch?

2/6/2020

What is the function of the fishbone stitch?

What is the function of each of the following parts of a sewing machine;spool pin,feed dog,tension disc

2/6/2020

What is the function of each of the following parts of a sewing machine;spool pin,feed dog,tension disc

spool pin : to hold the reel of thread while sewing and winding the bobbin.
feed dog : to move fabric while sewing.
tension disc : to control the tightness or looseness of the thread during stitching/regulate/tension.

State two uses of fabric conditioners.

2/6/2020

State two uses of fabric conditioners.

make fabric soft to touch;
prevent build up of static electricity prevent cloth from clinging to the body;
make ironing easier/reduces creasing;
introduce a pleasant smell/good/nice/fragrance.

Give two methods of sterilizing bath towels.

2/6/2020

Give two methods of sterilizing bath towels.

boiling;
steaming;
use of disinfectants:
fumigation;
dry under the sun;
press with a hot iron.

Describe competitive advertising.

2/6/2020

Describe competitive advertising.

the type of advertising used to promote/market/highlight/against the sale of different brands of similar/same goods and services where advertisers try to out do
each other by using gimmicks that sometimes create a negative/out do impression on the products of the competitor.

Highlight two precautions to take on a limb after a snake bite.

2/6/2020

Highlight two precautions to take on a limb after a snake bite.

do not move the limb: tie firmly around the limb just above the bite/compress;
suck out as much blood as possible/cut and bleed off;
wipe the bitten part/wash;
apply black stone/potassium permanganate;
seek medical attention.

State three points to bear in mind when choosing a hurricane oil lamp.

2/6/2020

State three points to bear in mind when choosing a hurricane oil lamp.

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