Sense Organs - 1 Class 1 Worksheet EVS

Q1: Fill in the blanks.

(i) We have ______ sense organs.
Ans: We have five sense organs

Explanation: Our body has five main sense organs: eyes, ears, nose, tongue, and skin. These organs help us interact with the world around us by allowing us to see, hear, smell, taste, and feel.

Sense Organs

(ii) ______ is the largest sense organ we have.
Ans: Skin is the largest sense organ we have.

Explanation: The skin covers our entire body and helps us feel sensations like heat, cold, and touch. It also protects our internal organs and keeps us safe from external harm.

(iii) We can identify many types of sound with our ______.
Ans: We can identify many types of sound with our ear.

Explanation: Our ears help us hear different types of sounds, such as music, voices, and noises. They also help us maintain balance.

(iv) We see this beautiful world with our ______.
Ans: We see this beautiful world with our eyes.

Eyes

Explanation: Our eyes allow us to see colors, shapes, and movements, enabling us to enjoy the beauty of the world around us.

(v) Our nose helps us ______.
Ans: Our nose helps us smell.

Explanation: The nose detects different smells, like flowers, food, and other scents, helping us enjoy pleasant aromas and stay away from harmful odors.

(vi) We listen to music with our________________.
Ans: We listen to music with our ears.

Explanation: The ears allow us to enjoy music by identifying sounds and rhythms, making music a delightful experience.

(vii) We watch television with our ______________.
Ans: We watch television with our eyes.

Explanation: Our eyes help us see the images on the television, enabling us to enjoy shows, cartoons, and movies.

(vii) There are _________ buds all over the tongue.
Ans: There are taste buds all over the tongue.

Taste Buds over Tongue

Q2: Write the taste of the following given food.

(i) Chocolate
Ans: Sweet
Explanation: Chocolate tastes sweet because it contains sugar, which is detected by the sweet receptors on our tongue.

(ii) Lemon
Ans: Sour 
Explanation: Lemon tastes sour because it has citric acid, which stimulates the sour taste buds on our tongue.

Lemon tastes Sour

(iii) Bitter gourd
Ans: Bitter
Explanation: Bitter gourd tastes bitter because of its natural compounds, which activate the bitter receptors on our tongue.

 Bitter gourd

(iv) Chips
Ans: Salty
Explanation: Chips often taste salty due to the added salt, which is detected by the salt receptors on our tongue.

(v) Ice-cream
Ans: Sweet
Explanation: Ice-cream tastes sweet due to the sugar and flavors used in it. The sweetness is recognized by the sweet taste buds on our tongue.

Q3: Answer the following Questions.

(i) Write the names of any 4 things that you see in your classroom.
Ans: 
(a) Desk
(b) Chair
(c) Board
(d) Table

(ii) List out five sense organs and things they help us to do. 

Ans: 

Explanation:

• Eyes – Our eyes help us to see. We can look at colors, shapes, and objects around us. For example, eyes help us read books and watch TV.
• Ears – Our ears help us to hear sounds. We can listen to music, hear people talk, and even enjoy the sounds of nature like birds chirping.
• Nose – Our nose helps us to smell things. We can enjoy the fragrance of flowers, identify food by its smell, and even sense bad odors.
• Tongue – Our tongue helps us taste food. We can enjoy different flavors like sweet, salty, sour, and bitter when we eat.
• Skin – Our skin helps us feel touch, heat, cold, and pain. It helps us know if something is soft, rough, or warm, keeping us safe from harm.