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Objective Questions

Latest Science Olympiad Class 4 Exam Question (Objective Questions), MCQ in English

Subjects : Logical Reasoning, Science Section, Achievers Section

Question Bank Science Olympiad Class 4 Exam Level 1 - English
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Logical Reasoning

Question 1Single Answer
What comes next in the series 4, 8, 12, 16, 20, ?
  1. A24
  2. B26
  3. C22
  4. D28
Question 2Single Answer
Which number completes the pattern 3, 6, 12, 24, ?
  1. A42
  2. B36
  3. C48
  4. D50
Question 3Single Answer
What is the missing number in 81, 72, 63, 54, ?
  1. A43
  2. B46
  3. C45
  4. D44
Question 4Single Answer
Which letter comes next in A, C, E, G, ?
  1. AJ
  2. BH
  3. CK
  4. DI
Question 5Single Answer
Find the missing number in 2, 5, 10, 17, 26, ?
  1. A35
  2. B37
  3. C36
  4. D39

Science Section

Question 6Single Answer
Which part of a plant absorbs most water from the soil?
  1. ARoots
  2. BFruits
  3. CLeaves
  4. DFlowers
Question 7Single Answer
Which gas do green plants take in during photosynthesis?
  1. ANitrogen
  2. BOxygen
  3. CHydrogen
  4. DCarbon dioxide
Question 8Single Answer
Which part of a flower usually develops into a fruit after fertilisation?
  1. APetal
  2. BOvary
  3. CSepal
  4. DStamen
Question 9Single Answer
Which animal is a herbivore?
  1. AEagle
  2. BWolf
  3. CDeer
  4. DTiger
Question 10Single Answer
Which plant is commonly grown from a stem cutting?
  1. APea
  2. BRose
  3. CWheat
  4. DMaize
Question 11Single Answer
Which of these animals undergoes metamorphosis from tadpole to adult?
  1. ALizard
  2. BCat
  3. CFrog
  4. DSparrow
Question 12Single Answer
What is the main role of chlorophyll in leaves?
  1. AAbsorbing minerals from soil
  2. BProducing seeds
  3. CTrapping sunlight
  4. DCarrying water to roots
Question 13Single Answer
Which seed is most likely to be dispersed by wind?
  1. ADandelion
  2. BMango
  3. CPea
  4. DCoconut
Question 14Single Answer
Which adaptation helps a cactus survive in a desert?
  1. ASoft waterlogged stem
  2. BLarge thin leaves
  3. CSpines instead of broad leaves
  4. DRoots growing only above soil
Question 15Single Answer
Which animal is classified as an invertebrate?
  1. AFrog
  2. BEarthworm
  3. CFish
  4. DRabbit
Question 16Single Answer
Which bird has webbed feet that help it swim?
  1. ASparrow
  2. BDuck
  3. CWoodpecker
  4. DEagle
Question 17Single Answer
What is the main function of feathers on a bird’s wings?
  1. AChewing food
  2. BDigging soil
  3. CSmelling flowers
  4. DHelping in flight
Question 18Single Answer
Which bird has a hooked beak suited to tearing flesh?
  1. AHummingbird
  2. BDuck
  3. CPigeon
  4. DEagle
Question 19Single Answer
Which bird uses a long, pointed beak to catch fish?
  1. AParrot
  2. BHen
  3. CSparrow
  4. DKingfisher
Question 20Single Answer
Why do many birds sit on their eggs?
  1. ATo make eggs lighter
  2. BTo keep the eggs warm
  3. CTo turn eggs into seeds
  4. DTo make the shells thicker
Question 21Single Answer
Which bird cannot fly but is an excellent swimmer?
  1. ACrow
  2. BSwallow
  3. CPigeon
  4. DPenguin
Question 22Single Answer
What helps a woodpecker grip tree trunks?
  1. AStrong claws
  2. BFlat swimming feet
  3. CHooves
  4. DWebbed toes
Question 23Single Answer
Which bird has a broad, flat beak for straining food from water?
  1. ADuck
  2. BWoodpecker
  3. CHawk
  4. DSunbird
Question 24Single Answer
What do air-filled spaces in many bird bones help with?
  1. AMaking the beak stronger
  2. BProducing feathers
  3. CStoring seeds
  4. DMaking the body lighter
Question 25Single Answer
Which nutrient is mainly needed for growth and repair of body tissues?
  1. AWater
  2. BProtein
  3. CFibre
  4. DCarbohydrate
Question 26Single Answer
Which food is rich in vitamin C?
  1. AButter
  2. BGuava
  3. CRice
  4. DSalt
Question 27Single Answer
Which nutrient provides the body with a major source of energy?
  1. ACarbohydrates
  2. BWater
  3. CMinerals
  4. DVitamins
Question 28Single Answer
Why should we wash fruits before eating them?
  1. ATo change their seeds
  2. BTo make them grow
  3. CTo add protein
  4. DTo remove dirt and some germs
Question 29Single Answer
Which food contains substantial calcium for healthy bones and teeth?
  1. ACooking oil
  2. BMilk
  3. CSugar
  4. DWhite rice
Question 30Single Answer
Which method preserves food by removing much of its moisture?
  1. ADrying
  2. BServing warm
  3. CBoiling briefly
  4. DMixing with fresh water

Achievers Section

Question 31Single Answer
A potted plant kept in darkness for a week becomes pale. What is the most likely reason?
  1. AIts roots have turned into flowers
  2. BIt cannot make enough food by photosynthesis
  3. CIts leaves are absorbing extra sunlight
  4. DIt receives too much oxygen
Question 32Single Answer
Two identical seedlings get equal water; one receives sunlight and the other is kept in a cupboard. Which will probably grow healthier?
  1. AThe seedling kept in the cupboard
  2. BThe seedling receiving sunlight
  3. CNeither needs light to grow
  4. DBoth will photosynthesise equally
Question 33Single Answer
A cactus survives where rainfall is scarce. Which feature helps it conserve water?
  1. ALeaves modified into spines
  2. BA soft water-leaking stem
  3. CRoots that absorb sunlight
  4. DBroad thin leaves
Question 34Single Answer
A water lily floats on a pond. What helps its leaves receive sunlight?
  1. ARoots above all the flowers
  2. BNo air spaces inside the plant
  3. CLeaves that remain buried in mud
  4. DBroad floating leaves
Question 35Single Answer
A plant's roots are damaged during transplantation. Which problem will appear first?
  1. AAn immediate increase in fruit size
  2. BFaster photosynthesis
  3. CReduced absorption of water and minerals
  4. DMore oxygen absorbed by flowers
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