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Q.1. Do you know any poem about fish?
Ans. Yes. The poem is written below,
Q.2. When you think of fishes, what shapes come to your mind?
Ans. When I think of fishes, the following shapes come to my mind.
Q.3. Try to use a square and a triangle to draw a fish.
Ans. By using a square and a triangle, we can draw a fish like the below,
Q.1. ‘Meen’ means a fish, and ‘Meenakshi’ is a girl whose eyes look like a fish. Can you think of someone who has such eyes? Draw a face with ‘fish eyes’
Ans. Following is a face with ‘fish eyes.’
Q.2. How long is the biggest fish you can imagine?
Ans. One whale shark was as long as 18 m. So, I can imagine that a fish is about 18 meters long.
Q.3. How many times longer is your big fish than the smallest fish?
Ans. Fishes can have very different sizes.
The smallest fish is about 1 cm long, and the biggest fish is about 18 m long.
We know, 1 m = 100 cm
Then, 18 m = 18 × 100 cm
Which is = 1800 cm
∴ Big fish is 1800 times longer than the smallest fish.
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Q.1. About how many kilograms do you weigh?
Ans. I weigh about 30 kilograms.
Q.2. So, 12 children like you put together will weigh about ______ kg.
Ans. My weight is 30 kg.
Then, Weight of 12 children like me = 12 × 30 kg = 360 kg
So, 12 children like me put together will weigh about 360 kg.
Q.3. About how much more does the whale shark weigh than 12 children like you put together?
Ans. The weight of a whale shark was about 16000 kg.
Weight of 12 children like me put together = 360 kg
Then, how much more does the whale shark weigh than 12 children,
= Whale shark weight - Weight of 12 children like me put together
= 16000 – 360
= 15,640 kg
∴ The whale shark will weigh 15,640 kg more than the Weight of 12 children like me put together.
Q.1. How many of you have seen the sea? Where did you see it? Did you see it in a movie or for real? How deep do you think the sea could be? Find out.
Ans. Many of my friends and I have also seen the sea. I have seen the sea at Mangalore. I have seen the sea in a movie and also in real. I think the depth of the sea is more than 500 feet.
Q.2. Do you know how to swim? Would you be scared of the high sea waves?
Ans. Yes, I know how to swim. Also, I am scared of the high sea waves.
Q.3. Close your eyes and imagine the sea with waves rising high.
Ans. Yes, I can imagine the sea with waves rising high it was amazing.
Q.4. How high do you think the waves can go?
Ans. I think that the waves can go more than 45 meters.
Q.5. These log boats do not go very far. If the wind is helpful, they travel about 4 km in one hour.
(a) How long will they take to go a distance of 10 km?
Ans. These log boats take one hour to travel 4 km,
Then, a log boat takes two hours to travel = 2 × 4 = 8 km
But in half an hour, the log boat will travel = 4/2 = 2km
For 2 hours boat travel = 8 km
For 1/2 an hour, boat travel = 2 km
∴ the total time they take to go a distance of 10 km = is 2 and a half an hour.
(b) Guess how far you can go in one hour if you walk fast.
Ans. I think I can cover 5 km to 6 km if I walk fast.
Q.1. Look at the sun and find out the direction from where it rises.
(a) From where you are, what interesting thing do you see to your east?
Ans. I can see the sun rising in the east, and the wind is blowing.
(b) Name two things that are lying to your west.
Ans. Hut and tree are the two things lying to my west.
Q.2. Look at the different types of boats.
Some boats have motors and go further into the sea. Since they go far out, they can catch more fish. These boats travel faster, at the speed of about 20 km in one hour.
(a) How far would the motor boats go in three and a half hours?
Ans. As mentioned in the question, these motor boats travel at the speed of about 20 km in one hour = 20 x 1
Then the distance traveled by motor boats in three and half hours (3.5)
= 20 × 3.5
= 70 km
(b) How much time will they take to go 85 km?
Ans. As mentioned in the question, these motor boats travel at the speed of about 20 km in one hour.
Then the distance traveled by motor boats in four hours
= 20 × 4
= 80 km
This gives 5 as the remainder
The distance traveled by motor boats in 1/4 hour = 1/4 × 20
= 5 km
The total time is taken by motor boat to go a distance of 85 km
= Distance/ Speed
= 4 hours 15 minutes.