Grade 5 | Science Notes - Cleanliness | Unit-16
Grade 5 Science Notes of Cleanliness Unit-16.
EXERCISE
| exercise | environment sanitation | compost | Non-degradable | eight |
| adolescence | personal hygiene | paper | menstruation | cleanliness |
1. Fill in the blanks using the words given in the box.
a) Cleanliness means making our body and surrounding clean.
b) Cleaning of our body to be healthy is called personal hygiene.
c) Adolescence is the period of time between 10 years and 19 years of age.
d) We should use degradable waste to make compost.
e) We should sleep about eight hours.
f) Regular exercise makes our body healthy, fit and strong.
g) Environment sanitation means making our surrounding clean and healthy.
h) Paper is an example of degradable waste.
i) Plastic is a Non-degradable waste.
j) Menstruation occurs in every female who is capable of giving birth.
Also Read:
Grade 5 | Science Notes - Animal Life | Unit-1
Grade 5 | Science Notes - Cell | Unit-2
Grade 5 | Science Notes - Life Cycle Of A Butterfly | Unit-3
Grade 5 | Science Notes - Effect of Human Activities on Environment | Unit-6
Grade 5 | Science Notes - Environment and its Conservation | Unit-7
Grade 5 | Science Notes - States of Matter | Unit-8
Grade 5 | Science Notes - Energy | Unit-9
Grade 5 | Science Notes - Parts of a Flowering Plant | Unit-4
Grade 5 | Science Notes - Clouds | Unit-11.
Grade 5 | Science Notes - Weather | Unit-10.
Grade 5 | Science Notes - The Universe | Unit-12.
Grade 5 | Science Notes - The Earth | Unit-13.
Grade 5 | Science Notes - Information and Communication | Unit-14.
Grade 5 | Science Notes - Common Local Technology | Unit-15.
Grade 5 | Science Notes - Cleanliness | Unit-16.
2. Write 'T' for true and 'F' for false statements.
a) We should clean our skin with soap and water. 'T' (True)
b) Nails should be trimmed regularly. 'T' (True)
c) A dirty environment makes us sick. 'T' (True)
d) We should make our environment clean. 'T' (True)
e) Plastic is a non-degradable waste. 'T' (True)
f) Compost can be used in the vegetable garden. 'T' (True)
g) Menstruation starts during adolescence. 'T' (True)
h) We should make our home and surrounding environment clean. 'T' (True)
i) We need a pit to compost organic waste. 'T' (True)
j) We should reuse and recycle wastes. 'T' (True)
3. Select the correct alternatives.
a) Cleanliness means cleaning of our body and surrounding environment. (personal hygiene/ cleanliness)
b) We should use a personal comb to comb our hair. (personal/ common)
c) We should sleep eight hours a day. (eight/ four)
d) We should eat balanced diet to keep our body healthy. (balanced diet/ junk foods)
e) Exercise makes our body strong. (strong/ weak)
f) Micro-organism decay organic wastes. (Micro-organism/ Birds)
g) Solid wastes are solid in nature. (solid/ liquid)
h) We should reduce the amount of waste that we produce. (increase/ reduce)
i) Degradable wastes are also called organic waste. (inorganic/ organic)
j) Plastic is the main inorganic waste that pollutes the environment. (Plastic/ Glass)
4. Match the following.
| Column 'A' | Column 'B' |
|---|---|
| Nails | Environment sanitation |
| Personal Hygiene | 10 to 19 years |
| Paper | Rich in soil nutrients |
| Exercise | Degradable waste |
| Boys | Trim on time |
| Humus | Non-degradable wastes |
| Menstruation | Personal cleanliness |
| Adolescence | Healthy body |
| Cleaning surrounding | Hoarse sound |
| Plastic | Coming of blood from womb of female |
Answer:
| Column 'A' | Column 'B' |
|---|---|
| Nails | Trim on time |
| Personal Hygiene | Personal cleanliness |
| Paper | Degradable waste |
| Exercise | Healthy body |
| Boys | Hoarse sound |
| Humus | Rich in soil nutrients |
| Menstruation | Coming of blood from womb of female |
| Adolescence | 10 to 19 years |
| Cleaning surrounding | Environment sanitation |
| Plastic | Non-degradable wastes |
5. Define the following terms.
a) Cleanliness.
#Define cleanliness.
#What do you mean by cleanliness?
Answer: Cleanliness means keeping our body and surrounding clean.
Or,
The way of keeping our body and surrounding clean is called cleanliness.
b) Personal hygiene.
#Define personal hygiene.
#What do you mean by personal hygiene?
Answer: Personal hygiene means the ways of keeping our body clean.
Or,
The ways of keeping our body clean is called personal hygiene.
c) Environmental Sanitation.
#Define Environmental Sanitation.
#What do you mean by environmental sanitation?
Answer: Cleaning our environment and making it healthy is called environmental sanitation.
d) Menstruation.
#Define Menstruation.
#What do you mean by Menstruation?
Answer: Menstruation is the flow of blood from the womb of a mature girl which occurs once in 28 days.
e) Adolescence.
#Define adolescence.
#What do you mean by adolescence?
Answer: The period of time from 10 years to 19 years of age when most of our physical changes occur is called adolescence.
f) Solid wastes.
#Define solid wastes.
#What do you mean by solid wastes?
Answer: Wastes that are in solid in nature are called solid wastes.
g) Organic wastes.
#Define organic wastes.
#What do you mean by organic wastes?
Answer: Wastes that decay by micro-organisms are called organic wastes.
h) Inorganic wastes.
#Define inorganic wastes.
#What do you mean by inorganic wastes?
Answer: Wastes that do not decay are called inorganic wastes.
i) Compost manure.
#Define compost manure.
#What do you mean by compost manure?
Answer: Compost manure is manure that helps to provide nutrients to soil.
j) Humus
#Define humus.
#What do you mean by humus?
Answer: Humus is a decayed organic matter that is rich in soil nutrients.
6. Answer the following questions.
a) Why is cleanliness important to us?
Answer: Cleanliness is important to us to have healthy life which makes our life happy and cheerful.
b) Why is it necessary to change your clothes?
Answer: It is necessary to change our clothes to become healthy and free from diseases.
Or,
If we do not change our clothes, it become dirty. Dirty clothes make us untidy and sick. Also, people dislike us if we wear dirty clothes.
c) Write any two benefits from physical exercise?
Answer: The two benefits from physical exercise are -
i) Physical exercise helps all parts of the body work properly.
ii) Physical exercise makes us healthy and strong.
d) Why do you need rest and sleep?
Answer: We need rest and sleep because it help to digest our food which we eat and it also keep our body free from tiredness.
e) What should be done when our hair becomes dirty?
Answer: We should wash our hair regularly with shampoo or soap and clean water to remove dead skin cells, excess oil and dirt when our hair becomes dirty.
f) What may happen if we do not trim our nails?
Answer: If we do not trim our nails, the underside of the nail may contain dirt or germs which causes diseases.
g) When does adolescence start?
Answer: Adolescence starts at the age of 10.
h) List two changes in boys and girls during adolescence.
Answer: The two changes in boys and girls during adolescence are - (Write any two)
i) Internal and external organs are developed.
ii) S** organs are developed.
iii) In boys, testes, pubic hair and mustache appear.
iv) In girls, vagina, uterus, pubic hair, etc are developed.
v) The voice of boys becomes loud and hoarse.
vi) Menstruation starts in girls.
i) Why do we need environmental sanitation?
Answer: We need environmental sanitation to live a healthy life.
j) How can waste be managed?
Answer: The waste can be managed by following ways:-
i) Composting degradable wastes.
ii) Reuse and recycle non-degradable wastes.
7. Write down any two differences between:
a) Personal hygiene and environmental sanitation.
Answer: The two differences between personal hygiene and environmental sanitation are-
| Personal Hygiene | Environmental Sanitation |
|---|---|
| 1. Personal hygiene means the way of keeping our body clean. | 1. Environmental sanitation means cleaning our environment and making it healthy. |
| 2. In personal hygiene, we only maintain our personal cleanliness. | 2. In Environmental sanitation, we maintain our personal and all peoples cleanliness and also our surroundings neat and clean. |
b) Physical changes in boys and girls.
Answer: The two differences between physical changes in boys and girls are -
| Physical change in Boys | Physical change in Girls |
|---|---|
| 1. In boys, testes, pubic hair, etc are developed. | 1. In girls, vagina, uterus, pubic hair, etc are developed. |
| 2. The voice of boys become loud and hoarse. | 2. Menstruation starts in girls. |
c) Organic wastes and solid wastes.
Answer: The two differences between organic wastes and solid wastes are - (write any two)
| Organic wastes | Solid wastes |
|---|---|
| 1. Wastes that can be decayed by micro-organisms are called organic wastes. | 1. Wastes that are solid in nature are called solid wastes. |
| 2. Examples of organic wastes are - food waste, clothes, leather, bones, dead animals and plants, etc. | 2. Examples of solid wastes are - plastic materials, glasses, vegetables, paper, bags, peel of fruits, etc. |
| 3. Organic wastes can be used in our fields and garden. | 3. Solid wastes can or cannot be used in our fields and garden. |
d) Recycle and reuse.
Answer: The two differences between recycle and reuse are - (write any two)
| Recycle | Reuse |
|---|---|
| 1. Recycle means converting the thing into other or same things by using energy. | 1. Reuse means using the same thing again and again. |
| 2. Recycle consumes little amount of energy, but saves it too. | 2. Reuse saves energy. |
| 3. Recycle sometime causes harm to environment. | 3. Reuse does not harm environment, in any way. |
| 4. A new product is created, so form of product is changed. | 4. Does not change the original form of product. |
GLOSSARY
Sanitation - maintaining cleanliness. (#sanitation meaning in nepali language is सरसफाई, फोहोर मैला प्रबन्ध गर्ने काम)
Hoarse - rough. (#hoarse meaning in nepali language is कर्कश, धोद्रो, धोद्रे, खस्रो)
Excessive - too much. (#excessive meaning in nepali language is अत्याधिक, प्रचुर मात्रामा, अधिक)
Womb - uterus of women. (#womb meaning in nepali language is गर्भाशय, कोख, गर्भ, गर्भमा)
Irritation - not feeling comfortable. (#irritation meaning in nepali language is झर्काई, जलन, दाह)
Micro-organisms - microscopic organisms like bacteria, fungi, etc. (#microorganism meaning in nepali language is सुक्ष्मजीव)
#From above grade class-5 science notes of "Cleanliness" Unit-16, we hope students can explain the ways and importance of personal hygiene. They can be able to describe the importance of exercise, rest and sleep and explain the need of environmental sanitation. Also they can learn and define the solid wastes and identify its types.
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