Samacheer Kalvi 7th Science Term 1 Unit 6 Book Back Question and Answers/Solutions:
Samacheer Kalvi Class 7th Std Science Book Back 1 Mark and 2 Mark Question & Answers PDF uploaded and available below. Class 7th Standard New Syllabus 2022 to 2023 Book Back Question & Answer solutions available for both English and Tamil Medium. Class 7 New Science Book Term 1 Unit 6 – Health and Hygiene Answers/Solutions Guide are provided on this page. 7th Std Science Book is of 1st Term consists of 7 units, 2nd and 3rd Term consists of 6 units. All Units/Chapters of Term 1st, 2nd, 3rd Science Book Back One, and Two Mark Solutions are given below.
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Samacheer Kalvi 7th Science Book Back Chapter 6 Term 1 Answers/Solutions Guide PDF:
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7th Science – Term 1 Chapter 6
Health and Hygiene
I. Choose the appropriate answer :
1. Ravi has sound mind and physically fit body. Which refers to
(a) Hygiene
(b) Health
(c) Cleanliness
(d) Wealth
Answer:
(b) Health
2. Sleep is not only good for body, but it is also good for
(a) Enjoyment
(b) Relaxation
(c) Mind
(d) Environment
Answer:
(c) Mind
3. Our living place should be
(a) Open
(b) Closed
(c) Clean
(d) Unclean / Untidy
Answer:
(c) Clean
4. The tobacco chewing causes
(a) Anamia
(b) Periodontitis
(c) Tuberculosis
(d) Pneumonia
Answer:
(b) Periodontitis
5. The first aid is to
(a) To save money
(b) To prevent scars
(c) To prevent the medical care
(d) To relieve the pain
Answer:
(d) To relieve the pain
II. Fill in the blanks :
1. A group of people living together in a particular area is called ______
Answer:
Community
2. Iam green colour box with garbage. Who am I am _______
Answer:
Bio degradable waste
3. Eyes are considered as ________ to the world.
Answer:
windows
4. The hair follicles produce ______ which keeps the hair smooth.
Answer:
oil
5. Tuberculosis is caused by the bacterium ________ .
Answer:
Mycobacterium tuberculae
III. True (or) False, If false give the correct statement.
1. All food should be covered.
Answer:
True
2. Chicken pox also known as Leucoderma.
Answer:
(False) Correct statement: Chicken pox is also known as vanicella.
3. Stomach ulcer is a non-commnicable disease.
Answer:
True.
4. Rabies is a fatal disease.
Answer:
True
5. First- degree bums damage the whole skin.
Answer:
False. Correct statement: First -degree bums affects the outer layer (epidermis) of the skin only
IV. Match the following:
| 1. | Rabie | (a) | Salmonella |
| 2. | Cholera | (b) | Yellow urine |
| 3. | Tuberculosis | (c) | Cramps in legs |
| 4. | Hepatitis | (d) | Hydrophobia |
| 5. | Typhoid | (e) | Mycobacterium |
Answer:
1 – d; 2 – c; 3 – e; 4 – b; 5 – a
V. Analogy.
1. First degree bum: epidermis :: second degree bum : _________
Answer:
Dermis.
2. Typhoid: Bacteria:: Hepatitis: _________
Answer:
Vims.
3. Tuberculosis : air:: Cholera: _________
Answer:
Water.
VI. Choose the correct alternative from the following:
1. Assertion (A) : Oral hygiene is good.
Reason (R) : Sound teeth and healthy gums with healthy surrounding tissues,
(a) Both A and R are true
(b) Both A and R are false
(c) A is true but R is false
(d) A is false but R is true
Answer:
(a) Both A and R are true
2. Assertion (A): Chicken pox is a viral communicable disease.
Reason (R) : Characterized by rashes on the whole body, fever, head ache and tiredness.
(a) Both A and R are true
(b) Both A and R are false
(c) A is true but R is false
(d) A is false but R is true
Answer:
(a) Both A and R are true
VII. Answer Very Briefly:
1. What is hygiene?
Answer:
Hygiene refers to the good habits and their practices which is followed to prevent disease, maintain good health, especially through cleanliness, consumption of safe drinking water and proper disposal of sewage. It refers to all those activities that are done for improving and maintaining good health and sound mind.
2. Write about the right way of protect the eyes?
Answer:
Practices to be followed for eye care.
- Do not rub the eyes
- Do not watch TV / Computer for a long time.
- Use cold water for cleaning the eyes.
- Eat lot of carrots which is rich in vitamin A needed for good vision.
- Eat fruits like oranges, sweet lemon etc., regularly.
3. How to keep your hair clean and health?
To keep the hair clean and healthy:
Answer:
- The regular hair wash and massage of the scalp will remove the dead skin cells, excess oil and dust.
- Rinsing the hair well with clear water and using good toothed comb for hair dressing is highly essential for their maintenance.
4. Sobi frequently playing with her mobile, suggest your ideas to protect his eye from irritation?
Answer:
- Stop playing with the mobile for a long time
- Keep the mobile at a distance from the eyes while playing.
- Wash eyes with cold water at intervals.
5. Give any two communicable disease, which spreads in your locality during monsoon?
Answer:
- Cholera
- Diarrhoea
6. What first aid will you provide in the case of bruises?
Answer:
- Bruises refer to scratches. It is a surface damage that does not penetrate the lower tissues.
- The affected area should be washed with cold running water and cleaned with an antiseptic cram on the wound.
7. Ravi said “Ganga had minor burn, so I washed with water” Do you agree with his statement or not? Explain Why?
Answer:
- Yes, In case of minor bums, the affected area should be washed with cold water.
- In case of severe bums, deeper layers of tissues get destroyed and blisters appear.
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