Kerala Syllabus Class 5 Basic Science Model Question Paper Set 1

For better subject understanding, Class 5 Basic Science Question Paper Pdf Set 1 offer useful practice.

Kerala Syllabus 5th Standard Basic Science Model Question Paper Set 1

Times : 2 1/4 hour
Total Score: 60

Instructions:

1. 15-minute cool-off time is allotted for reading and understanding the activities.
2. Answer any six questions.

Question 1.
A. Write the common factor in the given organisms:
Ant, Grasshopper, butterflies, beetles, Housefly, Mosquito, Honey bees.
Answer:
They are egg-laying insects

B. Complete the chart given.
(a)…. → ….(b)…. → ….(c)…. → Butterfly
Answer:
(a) Egg,
(b) larva,
(c) pupa

C. Observe the picture. What does this indicate? Explain.

Answer:
Figure indicates metamorphosis. The larva formed from the egg goes through different stages of growth and becomes a creature resembling the parent. This change is called metamorphosis.

2. This question has two parts 2 (A) and 2 (B). Answer either 2 (A) or 2 (B) completely.

Question 2.
A. a) Find out the odd one and write the reason.
Skin, bone, eye, ear
Answer:
Bone, others are sense organs

b) Find out the auditory sense organ of our body from the list given below.
i) Ears
ii) Eyes
iii) Skin
iv) Tongue
Answer:
Ears

c) Does the tongue help only in tasting? What are the other functions of the tongue?
Answer:
The tongue does more than just taste. Here are some of its other important functions:

1. Chewing and Swallowing: The tongue helps to move food around the mouth, making it easier to chew and swallow.
2. Speaking: It’s a key muscle for forming words and sounds.
3. Breathing: The tongue helps keep the airway open.
4. Cleaning the Mouth: It helps to clean the teeth and gums.

B. a) The table given below shows different sense organs and their functions. Examine the table and find out the correct pairs from the options.

(a) Eye	1. Hearing
(b) Ear	2. Tasting
(c) Nose	3. Touching
(d) Skin	4. seeing
(e) Tongue	5. Smelling

i) (a)-5, (b)-1, (c)-4, (d)-2, (e)-3
ii) (a)-4, (b)-5, (c)-3, (d)-1, (e)-2
iii) (a)-4, (b)-1, (c)-5, (d)-3, (e)-2
iv) (a)-2, (b)-3, (c)-5, (d)-4, (e)-1
Answer:

(a) Eye	4. seeing
(b) Ear	1. Hearing
(c) Nose	5. Smelling
(d) Skin	3. Touching
(e) Tongue	2. Tasting

b) Observe the picture and answer the question.

(a) Eye	1. Hearing
(b) Ear	2. Tasting
(c) Nose	3. Touching
(d) Skin	4. seeing
(e) Tongue	5. Smelling

What are sense organs?
Answer:
Creatures have different types of organs that help them to understand their surroundings. These organs are called the sense organs.

c) Why do people experience a reduced sense of smell when they have a cold?
Answer:
Excess mucus during cold, prevents odour particles from reaching the smell receptors in the nose.

Question 3.
A. Classify the following as monocot plants and dicot plants.
Coconut, mango, jackfruit, arecanut, wheat, guava tree, sapota
Answer:

Monocot plants	Dicot plants
• Cocunut	• Mango
• Arecanut	• Jackfruit
• Wheat	• Guava
	• Sapota

B. Ramesh said that the seed of lady’s finger, if sown too deep, will not sprout. Do you agree with this opinion? Why?
Answer:
Surely, I agree with this opinion. Germination occurs as a result of the rapid growth of the embryo. This needs a large amount of energy. This energy is obtained through respiration, and more oxygen is needed for it. But deep in the soil, oxygen is lacking. For this reason, seeds s,o,wn deep in the soil do not germinate as they do not get enough oxygen.

C. What are the factors required for seed germination?
Answer:
Air, water and favourable temperature.

Question 4.
a) Identify the constellation shown below.

Answer:
a) The Hunter (Orion)

b) Why is the constellation named so?
Answer:
When the stars are connected, we can imagine the shape of a hunter and hence given the name Hunter. The Greeks gave the name Orion to this constellation, which is the name of a hunter in their mythology.

c) What do you mean by constellation?
Answer:
Star clusters are known as constellations.

Question 5.
Observe the food web given below and answer the following questions.

a) What will happen if the deer population increases in this habitat?
Answer:
An increase in the number of deer can lead to a decrease in the number of plants. This will affect the
survival of the organisms that feed on the plants. (Example: Grasshopper). It then affects the entire food web.

b) What will happen if tigers disappear from this habitat?
Answer:
Apex animals, like tigers, are at the top of the food chain. Animals that eat plants, like deer, wild boar are what they mostly hunt. Without tigers to keep these groups in check, the number of herbivores would probably go through an increase.

c) What do you mean by food web?
Answer:
Living things depend on each other for food. This interrelationship of organisms is the food web.

6. This question has two parts 6 (A) and 6 (B). Answer either6 (A) or 6 (B) completely.

Question 6. A.
a) Examine the statement and reason given below and write the correct option.
Statement: A person who has been diagnosed with heart disease can still attend a social gathering without posing a risk of transmitting the disease to others.
Reason: Heart disease is a non-communicable disease, which means it cannot be spread from one person to another through direct contact or other transmission vectors like insects or contaminated food. It is often a result of a combination of genetic, environmental, and lifestyle factors.
A. Statement is correct, but the reason is wrong.
B. Statement is wrong, the reason is correct.
C. Statement and reason are correct.
D. Statement and reason are wrong.
Answer:
C. Statement and reason are correct.

b) List the diseases in the box as non-communicable diseases and communicable diseases.
Anaemia, Common cold, Chicken pox, Measles, Tuberculosis, Leptospirosis, Typhoid, Kwashiorkor, Diabetes, Hypertension, Headache, Stomach ache, Acidity, Epilepsy, Asthma, Cholera, Jaundice, Diarrhoea, Elephantiasis, Malarial fever, Dengue fever, Chikungunya, Haemophilia, Heart diseases, kidney stone, Cancer, Mental diseases, Corona, Plague, Leprosy, Diphtheria
Answer:

Contagious/Communicable	Non-contagious/Non-communicable
Common cold	Anaemia
Chicken pox	Kwashiorkor
Measles	Diabetes
Tuberculosis	Hypertension
Leptospirosis	Headache
Typhoid	Stomachache
Cholera	Acidity
Jaundice	Epilepsy
Diarrhoea	Asthma
Elephantiasis	Heart diseases
Malarial fever	Kidney stone
Dengue fever	Cancer
Chikungunya	Mental diseases
Corona
Plague
Leprosy
Diphtheria

c) Name two diseases affecting plants and animals each.
Answer:
Animals – lumpy skin disease, bird flu, etc.
Plants – Mosaic disease, brown leaf spot disease, etc.

B. a) Which of the following statements do you agree to?
I. Not all microorganisms cause disease.
II. All diseases can be kept at bay by keeping personal hygiene
III. By observing dry days once a week, we can prevent, to a certain extent, diseases caused by mosquitoes.
IV. All Vaccines are injected.
Answer:
I agree with the statements I, II, and III.

b) Vectors are organisms that bring disease-carrying microorganisms into our bodies. What can we do to control vectors? Write any two points.
Answer:

1. Eliminate stagnant water where mosquitoes breed.
2. Close gaps and cracks in buildings to prevent rats and insects from entering.

c) Write different measures to prevent the breeding of mosquitoes
Answer:
Avoiding waterlogging.

1. Removing grass and weeds around residences
2. Cleaning drains