Science Full Practice Exam – Set 1 (Class 5)

What this worksheet covers

This is a 50-question practice worksheet on full practice exam — set 1 for Class 5, written to the pattern of the SOF National Science Olympiad (NSO). It carries 60 marks and is designed to be attempted in 60 minutes, split across three sections — Section 1 — Logical Reasoning, Section 2 — Science and Achievers Section. Every question is multiple choice with exactly one correct option, and every one comes with a fully worked solution rather than just an answer key — so a child who gets one wrong can see where the reasoning went astray instead of only learning that it did.

Skills your child practises

• Applied problem-solving on full practice exam — set 1 at Class 5 level
• Working accurately against a time limit, as the real paper demands
• Section 1 — Logical Reasoning questions in the olympiad format
• Section 2 — Science questions in the olympiad format
• Achievers Section questions in the olympiad format
• Reading worked solutions to find the step that went wrong

How to use it

1. 1There are 50 questions in this paper. All questions are compulsory.
2. 2Each question has four options (A), (B), (C) and (D). Exactly one option is correct.
3. 3Questions 1–45 carry 1 mark each. Questions 46–50 (Achievers Section) carry 3 marks each.
4. 4There is no negative marking. Use of a calculator is not allowed.
5. 5Study every diagram carefully. Rough work may be done at the side of each page.

Sample questions from this worksheet

A preview of what's inside Science Full Practice Exam – Set 1 (Class 5) — the PDF has the full set, and every question comes with a worked solution like these.

1. 1. What comes next in the series? 1, 4, 9, 16, 25, ____

   • A30
   • B34
   • C36correct
   • D49
   Solution: Each number is a whole number multiplied by itself: 1×1, 2×2, 3×3, 4×4, 5×5.
   The next is 6 × 6 = 36.

2. 2. Which of these is an egg-laying mammal?

   • APlatypuscorrect
   • BBat
   • CKangaroo
   • DDolphin
   Solution: Almost all mammals give birth to live young, but the platypus and the spiny anteater lay eggs. They are still mammals because they have hair and feed their young on milk.

3. 3. Consider the following statements.(i) All animals that live in water breathe through gills.(ii) Photosynthesis stops at night but respiration continues.(iii) A shadow is always dark, whatever the colour of the object.Which of the statements is/are correct?

   • A(i) and (ii) only
   • B(ii) and (iii) onlycorrect
   • C(i) and (iii) only
   • DAll three
   Solution: Statement (i) is false — whales, dolphins and turtles live in water but breathe air with lungs. Statement (ii) is true; photosynthesis needs sunlight, while respiration never stops. Statement (iii) is true; a shadow is simply a region where light is absent, so it has no colour of its own. Hence (ii) and (iii).