Home Science Questions and Answers - Form 2 Term 2 Opener Exams 2023

Answer all the questions in the spaces provided.

1. Why is nylon popularly used in the making of bristles for brooms and brushes? (2mks)
2. State three factors to consider when buying a laundry brush. (3mks)
3. Outline three point to consider when choosing basins and bucket. (3mks)
4. State three causes of poor sanitation. (3mks)
5. Give four ways in which newspapers can be useful in the house. (4mks)
6. Give four factors to bear in mind when choosing personal clothes. (5mks)
7. List down three ways of purifying water. (3mks)
8. Identify five substances added to detergent during manufacture and give the purpose of each. (10mks)
9. State three principles of stain removal. (5mks)
10. State two ways of finishing clothes. (2mks)
11. Identify three rules for darning. (3mks)
12. State the two common methods of washing clothes. (2mks)
13. Give two classifications of detergents. (2mks)
14. Give five reasons for cooking food. (5mks)

SECTION B

ANSWER ALL QUESTIONS.

15. Your aunt is coming to visit you for a weekend. Describe how you would:
    1. Launder a pair of white cotton bed sheets for the bed she will use. (10mks)
    2. Clean your styling comb for her to use. (5mks)
    3. Remove chewing gum stain from her skirt. (5mks)

MARKING SCHEME 

Answer all the questions in the spaces provided.

1. Why is nylon popularly used in the making of bristles for brooms and brushes? (2mks)
   • It is strong
   • It is not absorbent
   • It dries quickly
2. State three factors to consider when buying a laundry brush. (3mks)
   • The bristles should be firmly fixed
   • The bristles should be soft so as not to damage the fabric.
   • The handles should be comfortable to use.
3. Outline three point to consider when choosing basins and bucket. (3mks)
   • They should be light in weight.
   • They should be rust proof
   • They should be the correct size for the cleaning being done.
   • They should be smooth.
   • Their colour and design should be attractive. 
4. State three causes of poor sanitation. (3mks)
   • Poor personal hygiene.
   • Water pollution due to domestic and industrial sewage leaking into water supply.
   • Improper refuse disposal, this litters the environment.
   • Air pollution from industries, dust and aero sprays.
   • Congestion; overlapping causes pressure on public facilities such as sewage system.
5. Give four ways in which newspapers can be useful in the house. (4mks)
   • They are used for collecting dirt after sweeping.
   • They are used for shinning glass windows
   • They are used for protecting surfaces.
   • They are used for lining shelves.
6. Give four factors to bear in mind when choosing personal clothes. (5mks)
   • They should suit the figure type.
   • They should be appropriate for the occasion.
   • They should be affordable.
   • They should be appropriate for the weather.
   • They should suit the wearers complexion.
   • They should be fashionable.
   • They should suit ones preference.
7. List down three ways of purifying water. (3mks)
   • Sedimentation
   • Boiling
   • Filtration
   • Chrorination.
8. Identify five substances added to detergent during manufacture and give the purpose of each. (10mks)
   • Blue- counteract the yellowing of white and brighten them.
   • Dye - improve appearance and give detergent their characteristics colour.
   • Antiseptic-ingredients improve the germicidal properties of some detergent.
   • Bleaches - to make detergents remove stains and whiten some clothes.
   • Builders - to improve the cleaning power of soap.
9. State three principles of stain removal. (5mks)
   • If the stain is acidic an alkali will remove it.
   • If the stain is alkaline an acid will remove it.
   • Alcohol will remove alcohol based stains.
   • Grease stains can be removed using detergent or solvent.
   • For stains on carpets and flour materials follow the manufacture instructions.
10. State two ways of finishing clothes. (2mks)
    • Pressing the bulky/heavy garments
    • Ironing the light garments.
11. Identify three rules for darning. (3mks)
    • Use a darning needle suitable for the fabric being darned.
    • Use a suitable yarn of the same colour and fibre content as the article being repaired.
    • Darn on the wrong side (WS) of the article.
    • Avoid stretching or pulling the garment while working.
    • At the end of each darning line, loops of thread should be left hanging to allow room for shrinkage.
12. State the two common methods of washing clothes. (2mks)
    • Friction
    • Kneading and squeezing
13. Give two classifications of detergents. (2mks)
    • Soap detergent these are made from animal fats and vegetables.
    • Soapless detergent, these are made from synthetic materials.
14. Give five reasons for cooking food. (5mks)
    • To kill germs
    • To improve on its nutritive value.
    • To improve on its flavor
    • To make it palatable.
    • To preserve it
    • To improve on its appearance.
    • To make it soft and easy to digest.

SECTION B

ANSWER ALL QUESTIONS.

15. Your aunt is coming to visit you for a weekend. Describe how you would:
    1. Launder a pair of white cotton bed sheets for the bed she will use. (10mks)
       • Shake to remove loose dirt.
       • Soak 1⁄2 in cold 1⁄2 plain water to soften dirt.
       • Wash% in hot 1⁄2 soapy water using friction /
         Method.
       • Rinse in hot½water severally and finally in cold ½ water.
       • Soak ½ for 15min in cold water to which come laundry bleach has been added to whiten it1⁄2.
       • Rinse severally in cold ½water to remove the bleach and freshen the fabric.
       • Wring all the water and dry 1⁄2 it on clothes line 1⁄2 in the sun ½
       • Iron it with a hot 1⁄2 iron to remove crease.
       • Air 1⁄2 fold1⁄2 and stir appropriately
    2. Clean your styling comb for her to use. (5mks)
       • Remove any fluff from the comb using a brush.
       • Soak the comb in warm soapy water to emulsify the grease.
       • Clean it thoroughly%1⁄2 using a soft brush until all the dirt is removed.
       • Rinse in warm water flicking it to remove all the dirt.
       • Rinse finally in cold to which some disinfectant has been added to freshen the comb and sterilize it.½
       • Flick it to remove excess water and dry in an airy place.½
       • Buff it with a dry cloth ½.
       • Store appropriately. 1⁄2
    3. Remove chewing gum stain from her skirt.(5mks)
       • Cleaning chewing germ
       • Harden using ice
       • Scarpe it from the skirt using a blunt stick.
       • Wash normally according to the fabric. (5mks)