The DAV Class 3 Science Book Solutions and DAV Class 3 Science Chapter 1 Question Answer – My Body are essential study tools for DAV public school students in Class 3.
DAV Class 3 Science Chapter 1 Question Answer – My Body
DAV Class 3 Science Ch 1 Question Answer – My Body
Something To Know
A. Fill in the blanks.
Question 1.
Our ______ is sensitive to different tastes.
Answer:
tongue
Question 2.
Loud sounds are unpleasant and harmful for ______
Answer:
ears
Question 3.
______ helps us to feel smooth and rough surfaces.
Answer:
skin
Question 4.
We should avoid reading in ______ light.
Answer:
dim
Question 5.
We have ______ sense organs.
Answer:
five.
B. Write True or False for the following statements.
1. Our body has many parts.
2. Sense organs help us to sense various things around us.
3. We can find out whether the tea is hot or cold by smelling it.
4. We get the feeling of pain when we are injured.
5. We can find out the colour of a leaf by just touching it.
Answer:
1. Our body has many parts. (True)
2. Sense organs help us to sense various things around us. (True)
3. We can find out whether the tea is hot or cold by smelling it. (False)
4. We get the feeling of pain when we are injured. (True)
5. We can find out the colour of a leaf by just touching it. (False)
C. Tick (✓) the correct option.
1. We feel through our
(a) Nose
(b) Skin
(c) Eyes
(d) Ears.
Answer:
(b) Skin
2. We should take bath
(a) Daily
(b) Weekly
(c) Fortnightly
(d) Monthly.
Answer:
(a) Daily
3. It is not a sense organ.
(a) Nose
(b) Stomach
(c) Ears
(d) Skin.
Answer:
(b) Stomach
D. Answer the following Questions in brief.
Question 1.
Name all the sense orgAnswer:
Answer:
Eyes, ears, nose, tongue and skin.
Question 2.
What does our nose help us to do?
Answer:
Our nose helps us in getting the smell.
Question 3.
What types of sounds are differentiated by our ears?
Answer:
Soft sound and loud sound.
Question 4.
Why should we meditate and exercise regularly?
Answer:
Regular meditation and exercise helps us in maintaining health. So, we should do it regularly.
E. Answer the following Questions.
Question 1.
Name the different types of tastes. Draw a diagram of a tongue showing all its taste related parts.
Answer:
Following are the different types of tastes: Sweet, sour, salty and bitter.
Question 2.
How are eyes useful to us?
Answer:
Eyes help us to see things around us. They also give an idea of the distance of various things.
Question 3.
List some pleasant and unpleasant sounds around us.
Answer:
Pleasant Sounds: Music, sound of cuckoo, sound of wind chime. Unpleasant Sounds: Sledgehammer, loud horn, sound of mixer grinder.
Question 4.
Write the role of skin in our body.
Answer:
Skin gives us the sense of touch.
Question 5.
Write any two activities where we use more than one sense organ.
Answer:
Following are the activities where we use more than one sense organ:
(a) Enjoying food: We use tongue to taste and nose to smell the food.
(b) Picking something: We use skin to feel the thing and eyes to see the thing.
Value Based Questions
Question 1.
Think of the problems that Rahul’s grandfather might have faced, due to his not being able to hear clearly:
(a) while at home.
Answer:
He may not enjoy talking to anybody. He will not enjoy watching TV news or hearing bhajans.
(b) on the road.
Answer:
He may not hear the horns. It can be dangerous for him while walking on the road.
(c) in the park.
Answer:
He may not enjoy talking to his friends in the park.
(d) at the market.
Answer:
It will be difficult to talk to the shopkeeper. He will not enjoy shopping.
Question 2.
Rahul and his father displayed some values in the situation discussed above. Discuss, with your classmates, about the values shown by them.
Answer:
Rahul and his father showed concern for the old person. They thought about the difficulty when one cannot hear clearly. They also showed how to care for
elderly.
Question 3.
If you had a classmate with some hearing problem, how will you help him or her:
(a) in the class?
Answer:
In the class, I will help my classmate to clear his doubts. I will read out a lesson for him.
(b) in the playground?
Answer:
In the playground, I will play a game in which there is no need of shouting or talking.
DAV Class 3 Science Chapter 1 Solutions – My Body
I. Multiple Choice Questions
1. Which of the following organs is not a sense organ?
(a) Eyes
(b) Teeth
(c) Tongue.
Answer:
(b) Teeth
2. Which organ gives us the sense of smell?
(a) Nose
(b) Ears
(c) Tongue.
Answer:
(a) Nose
3. Which organ gives the sense of touch?
(a) Tongue
(b) Nose
(c) Skin.
Answer:
(c) Skin
4. Which organ gives us the sense of taste?
(a) Tongue
(b) Ears
(c) Eyes.
Answer:
(a) Tongue
5. How many sense organs are there in the human body?
(a) Four
(b) Five
(c) Six.
Answer:
(b) Five.
II. Fill in The Blanks:
Question 1.
We have ______ eyes, (two/three)
Answer:
two
Question 2.
We have ______ ears. (One/two)
Answer:
two
Question 3.
We have ______ nose. (One/two)
Answer:
one
Question 4.
We have ______ tongue, (one/two)
Answer:
one
Question 5.
We can ______ food by tongue. (taste/smell)
Answer:
taste.
III. Write True/False:
1. There are six types of taste.
2. Loud noise is harmful for our ears.
3. Flowers usually smell bad.
4. Garbage usually smells bad.
5. We can recognize the voice of a known person.
Answer:
1. There are six types of taste. (False)
2. Loud noise is harmful for our ears. (True)
3. Flowers usually smell bad. (False)
4. Garbage usually smells bad. (True)
5. We can recognize the voice of a known person. (True)
IV. Define The Following:
Question 1.
What is sense organ?
Answer:
An organ which helps in sensing various things around us is called a sense organ.
Question 2.
What is noise?
Answer:
An unpleasant sound is called noise.
V. Very Short Answer Questions.
Answer the following in one word:
Question 1.
Which organ helps you to know if it is a soft sound or loud sound?
Answer:
Ears
Question 2.
Which organ helps you to know if it is a smell from a flower?
Answer:
Nose
Question 3.
Which organ helps you to know if it is a delicious food?
Answer:
Tongue
Question 4.
Which organ helps you to know if something is near or far?
Answer:
Eyes
Question 5.
Which organ will help you to know the colour of a flower?
Answer:
Eyes
VI. Short Answer Questions
Question 1.
What is the function of sense organs?
Answer:
The sense organs help us to sense various things present around us.
Question 2.
You are given two glasses filled with different liquids. How will you tell which glass has sweet liquid and which one has sour liquid?
Answer:
We know that the tongue gives us the sense of taste. I will taste the liquids with my tongue. This will tell me which glass has sweet liquid and which one has sour liquid.
Question 3.
An electric iron is kept on a table. Which organ will you use to check if the iron is hot?
Answer:
I will use my skin to check if the iron is hot because the skin gives us the sense of touch.
VII. Picture Based Question
Question 1.
The following figure of tongue shows parts for different tastes. Label this figure from 1 to 4.
Answer:
1. Bitter
2. Sour
3. Salty
4. Sweet.
DAV Class 3 Science Chapter 1 Notes – My Body
→ Our body is a wonderful gift of nature. It has many parts.
→ There are five sense organs in our body; eyes, ears, nose, tongue and skin.
→ Eyes help us in seeing the world around us.
→ Ears give us the sense of hearing. We can easily differentiate between noise and soft sound.
→ Nose gives us the sense of smell. We can easily differentiate between good smell and bad smell.
→ Tongue gives us the sense of taste. We can easily differentiate among sweet, sour, salty and bitter tastes.
→ Skin gives us the sense of touch. We can feel hot or cold, rough or smooth because of sense of touch.
→ Human body changes with age. There are changes in the size, weight, skin and colour of hair of our body. A child grows to become an adult. Adults grow to become old.
→ Taking Care of Sense Organs
| Clean your tongue with a tongue cleaner. | Bath daily. It keeps your skin clean. |
| Do not eat too hot or too cold thing. | Do not poke your eyes, nose or ear with any pointed thing. |
| Do not read in dim light. | Do not use TV or computer for long duration. |