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.

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