SOLUTION
| Type of Animal | Example | Characteristic |
| amphibians | frog | soft and slippery skin |
| reptiles | crocodile | scaly skin |
Identify the bird from the following picture.
Right Answer is:
SOLUTION
Hummingbird
Briefly explain the process by which mammals feed their young ones.
SOLUTION
Mammals directly give birth to their young ones. The young ones develop inside the mother’s body and feed on mother’s milk after birth.
Give the one word for the following
- Type of animal which is at times covered with colourful feathers.
- Birds which cannot fly.
SOLUTION
a. Birds
b. Flightless birds
Which of the following is the correct option for:
The largest mammal on earth:
- Elephant
- Blue Whale
- Humans
SOLUTION
b. Blue Whale
Agree/ Disagree?
- Salamander is an example of a fish
- Amphibians both live on land as well as on water.
SOLUTION
a. Disagree
b. Agree
Match the picture with its characteristics:
SOLUTION
How mammals are different from birds?
SOLUTION
Mammals give birth to young ones directly whereas birds reproduce by laying eggs.
Fill the blank with the appropriate words.
- ______ have six legs. (Insects/ Birds)
- Fishes have ______ on both sides to swim. (antennae/ fins)
SOLUTION
- Insects have six legs.
- Fishes have fins on both sides to swim.
Match the following:
|
Types of Animals |
Characteristics |
|
birds |
give birth to young ones directly |
|
insects |
have wings and can fly |
|
reptiles |
feel through feelers on their heads |
|
mammals |
cold blooded animal |
SOLUTION
|
Types of Animals |
Characteristics |
|
birds |
have wings and can fly |
|
insects |
feel through feelers on their heads |
|
reptiles |
cold blooded animal |
|
mammals |
give birth to young ones directly |
Name the group of animals which have hard scales on their body.
SOLUTION
Reptiles
Humans belong to what class of animals?
SOLUTION
Mammals
A hen’s egg has a hard outer shell. Is this statement correct or incorrect?
SOLUTION
Correct
Arrange the developmental stages of a hen in order.
chick hatchling egg adult
SOLUTION
egg → hatchling → chick → adult
Label the parts of egg in the given picture.
SOLUTION
How much time does an egg take to hatch?
SOLUTION
An egg takes about 21 days to hatch.
What does a hatchling hatch out of?
SOLUTION
A hatchling hatches out of an egg.
Arrange the developmental stages of a chick in order.
SOLUTION
(i)
a. From the list of animals given, write the names of those
animals with visible ears.
Deer, Tiger, Pig, Crocodile, Sparrow, Duck, Lizard, Buffalo,
Giraffe, Ant, Snake, Elephant, Crow, Cat
b. How do these animals hear?
(ii)
a. How can we differentiate between animals?
b. Do all birds have similar feathers?
(iii)
a. Do all the animals have similar hair?
b. Do you think that cows, elephants and buffaloes have hair on their skin?
(iv) Do all animals give birth to their young ones?
SOLUTION
(i)
(a) Frog, sparrow, duck, lizard, ant, snake, crow.
(b) These animals instead of external ears have tiny holes on both sides of their heads. These holes help them to hear. Lizards have tiny holes as ears on their heads.
(ii)
(a) Animals can be differentiated by their shape, size and the hair on the skin.
(b) All birds have feathers but all birds do not have similar feathers. Overall structures of the feathers are same. There are several kinds of feathers that have specialised roles and are used in many ways.
(iii)
(a) All animals do not have similar hair. The different patterns on animals are due to the different colour of hair on their skin.
(b) Cows, elephants and buffaloes have hair on their skin. They have very small hair; we can only see them when we go near the animals.
(iv)
Animals that have hair on their body give birth to their young ones; but those animals that do not have ears on the outside and do not have hair on their body, lay eggs.
Identify the animals by looking at their hair and skin patterns.
a. 
b. 
c. 
d. 
e. 
f. 
g. 
SOLUTION
a) Elephant
b) Giraffe
c) Zebra
d) Leopard
e) Tiger
f) Deer
g) Snake
Write a paragraph on how poaching of elephants for its tusk, can be stopped.
SOLUTION
Have you been to a circus? If yes, then were there any elephants that performed? Write a paragraph on how they were treated.
SOLUTION
Identify the kind of elephant in the image:
a) African
b) Asian
SOLUTION
A) African
What is the threat to elephants in the wild?
SOLUTION
The biggest threat is from human encroachment, poaching for tusks, deforestation and constant human animal conflict.
Are elephants endangered?
SOLUTION
Although the WWF considers it widely distributed, the species is still endangered.
What is the estimated elephant population in the wild?
SOLUTION
The Indian elephant population is estimated to be between 20,000 and 25,000 in the wild.
What is the result of the poor treatment of elephants in circus?
SOLUTION
Many elephants become dysfunctional, unhealthy, depressed, and aggressive as a result of the cruel conditions in which they are kept.
How are elephants treated in a circus?
SOLUTION
Most elephants in circuses and entertainment business are denied everything that is natural and important to them.
Till what age do male elephants live with the herd?
SOLUTION
Male elephants live with the herd till the age of 14-15 years. Then they leave the herd and move around alone.
Give some points on the formation of an elephant herd.
SOLUTION
An elephant herd is almost like a close knit family. Elephant herds have mostly females and baby elephants. The oldest female is the leader of the herd. One herd can have up to 10 to 12 female elephants and young ones.
What do you call a group of elephants?
SOLUTION
Herd
Are elephants playful by nature?
SOLUTION
Elephants are very playful by nature. They play in the ponds and rivers by pulling each other's tail and splashing water through their trunk.
Let’s imagine that you have a pet dog of your own. How would you take care of it? How would you train it? Will you beat it when it does not follow your instructions? Describe in your own words.
SOLUTION
Answer may vary
Probable answer:
If I ever had a pet dog of my own, I would provide him the food and shelter. In case, he gets sick, I would take him to the veterinarian. I would train him to how to play and catch things. I would not never beat him.
Camels store food and water in their hump because ______.
- They get hungry very quickly
- They have to survive in the areas where water and food is a scarcity
- None of these
SOLUTION
b. They have to survive in the areas where water and food is a scarcity
Which of the following is true about elephants?
- The male is the head of the herd.
- An elephant lives alone.
- A group of elephants is known as a herd.
SOLUTION
c. A group of elephants is known as a herd.
The African lions differ from the Asiatic lions in regard to having ________.
- Larger manes
- Stronger bodies
- Both a larger mane and a stronger body
SOLUTION
c. Both a larger mane and a stronger body
The Himalayan bears live in _______.
- Deserts
- Caves
- Burrows
SOLUTION
b. Caves
Penguins inhabiting the South Pole have ______.
- A thick layer of fat covering them
- Fur
- Scales
SOLUTION
a. A thick layer of fat covering them
The skin of a polar bear is ______.
- White
- Black
- Cream
SOLUTION
b. Black
Polar bears inhabit _____.
- The north pole
- Forests
- Oceans
SOLUTION
a. The north pole
Which of these living things require more energy?
- plants
- animals
SOLUTION
Animals need more energy as compared to plants because animals can move from one place to another and it requires a lot of energy.
Categories the animals
SOLUTION
Tick the characteristics of food chains.
SOLUTION
Classify the animals and plants as per the levels in biological food chains.
SOLUTION
Give an example of the food chain that has one of each
- producer
- consumer
- decomposer
SOLUTION
What would happen if one part in a food web dies off?
SOLUTION
If one part in a food web dies off than the predator will find another source of food to survive.
What does the arrow in a food chain show?
SOLUTION
Arrow in the food chain shows that the animal is receiving the energy.
Why producers are always found at the starting of a food chain?
SOLUTION
Producers convert sun’s energy into food.
What is the function of bacteria in a food chain?
SOLUTION
Bacteria act as decomposers in a food chain.
Correct the statements
- Plants are called consumers because only they can manufacture food from inorganic raw materials.
- In a food chain, herbivores are called secondary consumers.
- Carnivores that feed on herbivores are called primary consumers.
- Carnivores that feed on other herbivores are tertiary (or higher) consumers.
- Most food chains have only about four to ten links.
SOLUTION
- Plants are called producers because only they can manufacture food from inorganic raw materials.
- In a food chain, herbivores are called primary consumers
- Carnivores that feed on herbivores are called secondary consumers.
- Carnivores that feed on other carnivores are tertiary (or higher) consumers.
- Most food chains have only about four to five links.
Choose the correct answer and fill in the blanks.
- The _________ is the living thing in the food chain that is a producer.
- The _________ is the living thing in the food chain that is a consumer.
- The _________ is the living thing which is eaten by the frog.
- The secondary level is the _________ level of the food chain.
- The ___________ is transferred in the food chain.
SOLUTION
- weed
- bear
- butterfly
- second
- energy
Rewrite the statements
- Houseflies are known as the carrier of diseases such as jaundice.
- A housefly reach its half size when comes out of the pupal case.
- The eggs of a housefly look like a tiny grain of corn.
- The egg of the housefly is also known as the maggot.
- The larva of the housefly spends all his time in playing and growing.
SOLUTION
- Houseflies are known as the carrier of diseases such as cholera.
- A housefly reach its full size when comes out of the pupal case.
- The eggs of a housefly look like a tiny grain of rice.
- The larva of the housefly is also known as the maggot.
- The larva of the housefly spends all his time in eating and growing.
Name the missing stage of the life cycle of the cockroach
SOLUTION
Name the three stages involved in the life cycle of a cockroach.
SOLUTION
There are three stages involved in life cycle of a cockroach, they are
- Egg
- Nymph
- Adult
How many stages are there in the life cycle of a cockroach?
SOLUTION
There are three stages involved in the life cycle of a cockroach.
After the butterfly egg hatches, what comes out?
SOLUTION
Larva comes out after the egg hatches.
What is the first stage of the life cycle of a butterfly?
SOLUTION
The life cycle of a butterfly begins from the eggs.
How many stages are present in the life cycle of a butterfly?
SOLUTION
The butterfly life cycle consist of four different life stages.
How long do butterflies stay in their cocoons?
SOLUTION
Butterflies stay in their cocoons for about 9-15 days.
How many different kinds of butterflies are there in the world?
SOLUTION
There are around 25000 varieties of butterflies in the world.
Where do butterflies usually lay their eggs?
SOLUTION
Butterflies usually lay their eggs on the leaves.
How does a butterfly egg look like?
SOLUTION
A butterfly’s egg look like a cone.
What is the life span of a butterfly?
SOLUTION
The life span of a butterfly is 3-4 weeks.
Chimpanzees belong to which category of animals?
SOLUTION
Arboreal animals
Where do arboreal animals spend their most of the time?
SOLUTION
On the trees
Name an arboreal animal who likes to eat acorn.
SOLUTION
Squirrel
Name an arboreal animal with strong chest.
SOLUTION
Gorilla
Name one arboreal animal.
SOLUTION
Monkey
Why do amphibians have legs?
SOLUTION
Legs help amphibians to move on land.
Amphibians hibernate in which season?
SOLUTION
winter
All whales breathe through 'blow-holes' which are located where?
SOLUTION
on the top of their heads
Dolphins breathe through which organ?
SOLUTION
Lungs
Give two examples of each of the following:
a. Fish
b. Insects
c. Amphibians
SOLUTION
a. Shark and Clown fish
b. Butterfly and Earthworm
c. Salamander and Toad
Answer the following questions:
a. What is the similarity between kiwi, ostrich and penguin?
b. What is the similarity between mammals and birds?
SOLUTION
a. Kiwi, ostrich and penguin are flightless birds.
b. Mammals and birth are warm blooded animals.
Birds and reptiles both lay eggs. State the major difference between birds and reptiles.
SOLUTION
Birds are warm blooded animals. Reptiles are cold blooded.
Write down the names of any five animals that directly give birth to young ones.
SOLUTION
Animals that directly give birth to young ones are:
1. Lion
2. Elephant
3. Cat
4. Tiger
5. Cow
Write a short note on fish.
SOLUTION
Fish live in water. Their bodies are covered with scales. The scales can be of many kinds like circular or diamond shaped. They have fins on both sides to swim. They have gills which are the openings to breathe.
SOLUTION
Identify the bird from the following picture.
SOLUTION
Hummingbird
Briefly explain the process by which mammals feed their young ones.
SOLUTION
Mammals directly give birth to their young ones. The young ones develop inside the mother’s body and feed on mother’s milk after birth.
Give the one word for the following
a. Type of animal which is at times covered with colourful feathers.
b. Birds which cannot fly.
SOLUTION
a. Birds
b. Flightless birds
Which of the following is the correct option for:
The largest mammal on earth:
a. Elephant
b. Blue Whale
c. Humans
SOLUTION
b. Blue Whale
Agree/ Disagree?
a. Salamander is an example of fish
b. Amphibians both live on land as well as on water.
SOLUTION
a. Disagree
b. Agree
Match the picture with its characteristic
SOLUTION
How mammals are different from birds?
SOLUTION
Mammals give birth to young ones directly whereas birds reproduce by laying eggs.
Fill the blank with the appropriate words.
a. ______ have six legs. (Insects/ Birds)
b. Fishes have ______ on both sides to swim. (antennae/ fins)
SOLUTION
a. Insectshave six legs.
b. Fishes have fins on both sides to swim.
SOLUTION
Answer the following questions.
(i)
a. From the list of animals given, write the names of those
animals with visible ears.
Deer, Tiger, Pig, Crocodile, Sparrow, Duck, Lizard, Buffalo,
Giraffe, Ant, Snake, Elephant, Crow, Cat
b. How do these animals hear?
(ii)
a. How can we differentiate between animals?
b. Do all birds have similar feathers?
(iii)
a. Do all the animals have similar hair?
b. Do you think that cows, elephants and buffaloes have hair on their skin?
(iv) Do all animals give birth to their young ones?
SOLUTION
(i)
a. Frog, sparrow, duck, lizard, ant, snake, crow.
b. These animals instead of external ears have tiny holes on both sides of their heads. These holes help them to hear. Lizards have tiny holes as ears on their heads.
(ii)
a. Animals can be differentiated by their shape, size and the hair on the skin.
b. All birds have feathers but all birds do not have similar feathers. Overall structures of the feathers are same. There are several kinds of feathers that have specialised roles and are used in many ways.
(iii)
a. All animals do not have similar hair. The different patterns on animals are due to the different colour of hair on their skin.
b. Cows, elephants and buffaloes have hair on their skin. They have very small hair; we can only see them when we go near the animals.
(iv)
Animals that have hair on their body give birth to their young ones; but those animals that do not have ears on the outside and do not have hair on
their body, lay eggs
Choose the correct option:
1. Polar bears inhabit _____.
a. the north pole
b. forests
c. oceans
2. The skin of a polar bear is ______.
a. white
b. black
c. cream
3. Penguins inhabiting the South Pole have ______.
a. a thick layer of fat covering them
b. fur
c. scales
4. The Himalayan bears live in _______.
a. deserts
b. caves
c. burrows
5. The African lions differ from the Asiatic lions in regard to having ________.
a. larger manes
b. stronger bodies
c. both a larger mane and a stronger body
6. Which of the following is true about elephants?
a. The male is the head of the herd.
b. An elephant lives alone.
a. A group of elephants is known as a herd.
7. Animals that live on trees are called _______.
a. aerial animals
b. arboreal animals
c. terrestrial animals
8. Turtles have _______.
a. shells, scales and feathers
b. shells
c. shells and scales
9. The desert snakes have ________.
a. water tight scales on their bodies
b. thick skin containing fat
c. none of these
10. Camels store food and water in their hump because ______.
a. they get hungry very quickly
b. they have to survive in the areas where water and food is a scarcity
c. none of these
SOLUTION
1. a
2. b
3. a
4. b
5. c
6. c
7. b
8. c
9. a
10. b
Identify the animals by looking at their hair and skin
patterns.
a. 
b. 
c.
d. 
e. 
f. 
SOLUTION
Elephant, giraffe, zebra, leopard, tiger, deer, snake
What is the difference between a tamed animal and a wild animal?
SOLUTION
A tamed animal learns to obey the command of his owner whereas a wild animal does not do so. A tamed animal lives in a man-made shelter whereas a wild animal lives in its natural environment.
Choose the correct option:
(a) The snake charmers
- Tame the snakes
- Sell the snakes
-
Kill the snakes
(b) Taming is
- Loving the wild animals
- Making the wild animals accustomed to the human world
- Hunting the animals
(c) Kalbelia is a
- Variety of snakes
- Tribe
- Kind of food
(d) Jogi, Nath, Sapere and Sadhu are
- Variety of snakes
- Different names of the snake charmers
- Names of the movies
(e) Choose the correct option:
- All snakes are poisonous.
- Dogs cannot be tamed.
- Catching animals and keeping them in an environment away from their original home is bad.
(f) Elephants are killed for
- Tusks
- Skin
- Both of these
(g) Common animals used for transportation are
- Camels and horses
- Squirrels and rabbits
- Snakes and monkeys
(h) Animals used in laboratory experiments are
- Guinea pigs and rats
- Chimpanzees
- Both of these
(i) Human beings tame animals for
- Food and companionship
- Clothes snd money
- All of the above
(j) Animals which give us food are
- Cow, goat, buffalo and sheep
- Guinea pigs and chimpanzees
- None of these
SOLUTION
Answers
(a) 2
(b) 2
(c) 2
(d) 2
(e) 3
(f) 1
(g) 1
(h) 3
(i) 3
(j) 1
What special preparations are made during the festival of Diwali?
SOLUTION
During Diwali, many sweet items such as Gulab Jamun, Besan ke Laddoo and Kaju ki Barfi are made.
What is shown in the given image?
SOLUTION
A balanced diet
Does junk food contain any nutritional value?
SOLUTION
No, junk foods are devoid of nutritional value.
The deficiency of which vitamin causes the disease named 'Beri-beri'?
SOLUTION
It is caused by the deficiency of Vitamin B.
Which out of the two will provide more energy 1gm carbohydrates or 1 gm fats?
SOLUTION
1 gram of fats will provide more energy.
Name the disease caused by deficiency of iodine.
SOLUTION
goitre
Why is it advised to have milk for stronger bones?
SOLUTION
Milk contains a lot of proteins and some amount of fat. Milk is also a rich source of minerals like phosphorus and calcium which are required for making the bones strong. It is known as an energy drink that helps to build up muscles and bones and also helps in body growth. Milk is considered as a complete food.
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