CBSE Class 5 Science The World of Animals Assignment

Worksheet 1
Ch:1 (The world of animals)

Q1. Give one word answer for following:--

Question 1(a). The place where animal lives or found naturally is called _______________
Answer: Habitat
In simple words: The natural home of an animal or plant is called its habitat.

Exam Tip: Remember that habitat provides food, water, and shelter for survival.

Question 1(b). A vast region that is densely covered by different varieties of plants is called _________________________
Answer: Forest
In simple words: A large area covered chiefly with trees and undergrowth is a forest.

Exam Tip: Forests are rich in biodiversity and house numerous terrestrial animals.

Question 1(c). A sandy and dry region which receives very little rainfall is called __________________________________
Answer: Desert
In simple words: A dry, barren area of land, typically covered with sand, is called a desert.

Exam Tip: Animals in deserts have special adaptations to survive extreme heat and water scarcity.

Question 1(d). A largest habitat on earth with salty water is called _________________
Answer: Ocean
In simple words: Oceans cover most of the earth's surface and contain saltwater.

Exam Tip: Oceans represent the marine habitat, which is the largest habitat type on Earth.

Question 1(e). The region near the north and south pole on earth is called ____________
Answer: Polar region (or Tundra)
In simple words: The extremely cold areas at the very top and bottom of the earth are the polar regions.

Exam Tip: Animals here possess thick fur and layers of fat to survive freezing temperatures.

Q2. What is migration? Why do birds migrate?
Answer: Migration is the regular, seasonal movement of animals from one region to another. Birds migrate to escape harsh weather conditions, to find a better and abundant supply of food, and to lay eggs or raise their young in favorable breeding grounds.
In simple words: Migration is traveling long distances seasonally to find food and better weather.

Exam Tip: Mention both climate change and food availability to get full credit for this answer.

Q3. Name two animals having the following types of body covering.
(a) Feathers: Pigeon, Crow
(b) Shell: Tortoise, Snail
(c) Fur: Bear, Sheep
(d) Scale: Fish, Snake
Answer: (a) Pigeon, Crow
(b) Tortoise, Snail
(c) Bear, Sheep
(d) Fish, Snake
In simple words: Different animals have specialized body coverings like feathers, shells, fur, or scales for protection and temperature control.

Exam Tip: Ensure you write exactly two examples as asked in the question.

Q4. Name the breathing organs in the following animals.
(a) Cockroach: Spiracles
(b) Crab: Gills
(c) Birds: Lungs
(d) Tadpole: Gills
(e) Frog: Lungs and moist skin
Answer: (a) Spiracles
(b) Gills
(c) Lungs
(d) Gills
(e) Lungs and moist skin
In simple words: Different animal groups use different respiratory organs depending on their habitat.

Q5. Unscramble the given words.
(a) TIARMGNIO: Migration
(b) TIBAHAT: Habitat
(c) LGISL: Gills
(d) OMOLOCNIOT: Locomotion
Answer: (a) Migration
(b) Habitat
(c) Gills
(d) Locomotion
In simple words: Unscrambling letters gives important biological terms related to animal life and habits.

Exam Tip: Check spelling carefully after unscrambling scientific vocabulary words.

Q6. Give one word for the following.
(a) The breathing organ found in prawn: Gills
(b) The modified forelimbs of a bird: Wings
(c) The birds that do not migrate: Resident birds (e.g., House sparrow, Crow)
(d) The region near north and south poles on earth: Polar region
Answer: (a) Gills
(b) Wings
(c) Resident birds
(d) Polar region
In simple words: These terms describe specific biological structures and ecological groups.

Exam Tip: Wings are structurally modified forelimbs that enable flight in birds.

Q7. Complete the following web chart:
Answer:
The web chart classifies habitats into five major types. Based on the given clues (CAMEL indicating Desert, and OCEAN), the completed habitat categories are:
1. Forest (with examples like Lion, Monkey)
2. Desert (with example: Camel)
3. Grassland (with examples like Zebra, Lion)
4. Ocean (with examples like Whale, Shark)
5. Polar Region (with examples like Polar bear, Penguin)
In simple words: The chart organizes the major natural homes (habitats) found on Earth.

Exam Tip: For web charts, ensure every connecting branch links a major habitat type with appropriate animal examples.