Super Senses - 2 Class 5 Worksheet EVS Chapter 1

Q1: Fill in the blanks

(i) _____ sleeps 17 hours a day.
Ans: Sloth

(ii) _______ make sounds to send messages inside the water body.
Ans: Dolphins

(iii) ________ cannot see many colors as humans.
Ans: Animals

(iv) Animals can see and ______ at night.
Ans: Black and White

(v) Elephants have _________ ears.
Ans: Big

Q2: Multiple choice Questions

(i) When a bird focuses both eyes on an object, what can it estimate?
(a) The distance
(b) The size
(c) The kind
(d) The shadow
Ans: (a)

(ii) From what distance an eagle in the sky can see roti on the ground.
(a) 100 mts
(b) 8 mts
(c) 60 mts
(d) 10mts
Ans: (b)

(iii) With which body part can a lion sense the movement and vibration in the air?
(a) whiskers
(b) tail
(c) ears
(d) paws
Ans: (a)

Q3: True or False

(i) Langurs use a special warning call to alert others of dangers like tigers or leopards.
Ans: True

(ii) Birds give alarm calls to warn about danger, and some birds have different sounds for different kinds of dangers.
Ans: True

(iii) Fishes give alarm calls by electric signals.
Ans: False

(iv) By tapping a desk once and listening carefully, and then tapping again while placing your ear on the desk, you can hear a difference in the sound of the tap.
Ans: True

(v) Some animals exhibit different behaviours when an earthquake or storm is about to occur, providing an indication of the danger.
Ans: True

Q4: Name the following:

(i) Who has different senses than humans?
Ans: Animals

(ii) Which insects guard their holes?
Ans: Ants

(iii) Which animal can return to the place where it releases the waste (urine or shit)?
Ans: Dogs

(iv) Which part of the plant smells good?
Ans: Flowers

(v) Name one bird that can see clearly far away things.
Ans: Eagles

Q5: Short answer type questions

(i) Why did the ants behave the way they did when their path was blocked?
Ans: The ants behaved like that because they followed a smell trail left by their fellow ants to find their way.

(ii) How do some male insects recognize their females?
Ans: Some male insects recognize their females by their smell.

(iii) How do mosquitoes know where you are?
Ans: Mosquitoes can find you by the smell of your body, the smell of the sole of your feet, and the heat of your body.

(iv) How can a silkworm find its female from many kilometres away?
Ans: A silkworm can find its female from many kilometres away by her smell.

(v) What did a scientist discover through experiments with ants?
Ans: Through experiments, a scientist found out that as ants move, they leave a smell on the ground which other ants follow to find their way.