Vidaara.orgClass 4 · Mathematics
CodeVID-M4-WS
Adaptations: Built to Survive — Practice Worksheet
Name: ____________________
Roll No.: __________
Date: ____________
General Instructions
- All questions are compulsory.
- Choose the correct option (A, B, C or D) for each question.
- The answer key is at the end — try the paper first!
Section A — Multiple Choice (1 mark each)
15 × 1 = 15 marks
1.
Some animals sleep through the cold winter. This is called…
- A.Camouflage
- B.Migration
- C.Hibernation
- D.Swimming
2.
Wide flat feet help a camel to…
- A.Swim fast
- B.Walk on soft sand without sinking
- C.Climb trees
- D.Dig deep wells
3.
Birds that fly to warm lands in winter are said to…
- A.Migrate
- B.Hibernate
- C.Dissolve
- D.Evaporate
4.
Why do mangrove plants near the sea have roots that stick up out of the mud?
- A.To get air where the mud has little
- B.To catch fish
- C.To make flowers
- D.To swim
5.
Why would a fish die if taken out of water for too long?
- A.It cannot see
- B.It gets too cold
- C.Its gills cannot take air from dry air
- D.It floats away
6.
A duck's feathers stay dry because they are covered with natural…
- A.Oil
- B.Sand
- C.Wax paper
- D.Glass
7.
A camel can go many days without…
- A.Drinking water
- B.Sleeping
- C.Standing
- D.Breathing
8.
Adaptations usually develop in living things over a very…
- A.Single day
- B.Long time
- C.Minute
- D.Second
9.
A fish's body shape is best described as…
- A.Square
- B.Streamlined (smooth and pointed)
- C.Flat like paper
- D.Round like a ball
10.
Many desert animals come out at night because the day is too…
- A.Dark
- B.Cold
- C.Hot
- D.Wet
11.
Plants on snowy mountains are often shaped like a cone so snow can…
- A.Stay forever
- B.Pile up
- C.Slide off easily
- D.Turn to rain
12.
Adaptations help an animal to…
- A.Watch TV
- B.Survive in its habitat
- C.Read books
- D.Drive cars
13.
Why does a bear eat a lot of food before hibernation?
- A.To grow taller
- B.To store energy as fat for the long sleep
- C.To clean teeth
- D.To swim
14.
A duck's webbed feet help it to…
- A.Fly higher only
- B.Climb trees
- C.Swim well
- D.Dig holes
15.
Water lily leaves are broad and flat so they can…
- A.Sink down
- B.Float on water
- C.Fly
- D.Burn
Section B — Challenge / Olympiad (2 marks each)
5 × 2 = 10 marks
16.
A cactus does most of its food-making in its green stem because it has almost no…
- A.Leaves
- B.Roots
- C.Flowers
- D.Water
17.
A behaviour that helps survival, like birds flying to warm lands in winter, is called…
- A.Migration
- B.Camouflage
- C.Dissolving
- D.Reflection
18.
A fish that floats up and down by filling a tiny air bag inside is using its…
- A.Eyes
- B.Tail only
- C.Air bladder
- D.Scales
19.
A polar bear's black skin under white fur helps it to…
- A.Hide food
- B.Look pretty
- C.Swim faster
- D.Soak up Sun warmth
20.
Why is a camel's thick fur on top but thin underneath a clever desert design?
- A.Top fur blocks Sun heat; thin belly lets heat escape
- B.It looks nice
- C.It stores water
- D.It helps swimming
Answer Key
Section A — Multiple Choice (1 mark each)
- (C) Hibernation
- (B) Walk on soft sand without sinking
- (A) Migrate
- (A) To get air where the mud has little
- (C) Its gills cannot take air from dry air
- (A) Oil
- (A) Drinking water
- (B) Long time
- (B) Streamlined (smooth and pointed)
- (C) Hot
- (C) Slide off easily
- (B) Survive in its habitat
- (B) To store energy as fat for the long sleep
- (C) Swim well
- (B) Float on water
Section B — Challenge / Olympiad (2 marks each)
- (A) Leaves
- (A) Migration
- (C) Air bladder
- (D) Soak up Sun warmth
- (A) Top fur blocks Sun heat; thin belly lets heat escape
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