Class-3-Science Olympiad Questions and Answers

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Class 3 Science Olympiad Questions with Answers are designed to strengthen young learners’ conceptual understanding of basic science topics such as plants, animals, energy, the human body, and natural phenomena. These aptitude test practice sets help students develop logical and scientific thinking through engaging, objective-type questions. Each question comes with an easy explanation to encourage curiosity and concept clarity. Olympiad-style aptitude questions and answers PDFs are perfect for both school-level and national-level exam preparation. Students can take free online tests to track progress and build confidence. This section is ideal for early learners aiming to excel in competitive school science exams.

Class-3-Science Olympiad

Showing 10 of 157 questions

81. What happens when Earth, Moon and the Sun come in a straight line ?

  • Eclipse of the Moon
  • Eclipse of Sun
  • New moon phase
  • Meteor showers
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82. Which of the following are planets ? (i) Sun (ii) Mercury (iii) Moon (iv) Saturn (v) Earth

  • (ii) & (iv)
  • (i), (ii) & (iv)
  • (i) & (v)
  • (ii), (iv) & (v)
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83. Plastic is not a natural meterial. This means that plastic is _______ (i) Found in the ground (ii) Made from chemicals. (iii) A man made material.

  • (i) & (ii)
  • (ii) & (iii)
  • (i) & (iii)
  • (i), (ii) & (iii)
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84. Which of the following is correct about evaporation ?

  • When liquid turns into vapour
  • When solid turns into vapour
  • When liquid turns to solid
  • When solid turns to gas
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85. Which is an example of a solid ?

  • Air
  • Ketchup
  • Milk
  • Paper
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86. 563 written in words is _____

  • Five sixty three
  • Five hundred sixty and three
  • Five hundred and sixty three
  • Fifty six hundred and three
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87. The sum of two numbers is 178. the bigger number is 99. What is the smaller number ?

  • 70
  • 79
  • 89
  • 69
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88. There are 5 goats. How many legs altogether ?

  • 15
  • 20
  • 25
  • 10
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89. What fraction of the figure is unshaded ?

  • 7/14
  • 6/14
  • 8/14
  • 9/14
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90. 6 m 9 cm = ______ cm

  • 69
  • 609
  • 690
  • 6009
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