Science Full Practice Exam – Set 3 (Class 5)

What this worksheet covers

This is a 50-question practice worksheet on full practice exam — set 3 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 3 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 3 (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? 2, 6, 12, 20, 30, ____

   • A40
   • B42correct
   • C45
   • D48
   Solution: Look at the difference between consecutive terms: 6−2=4, 12−6=6, 20−12=8, 30−20=10.
   The difference itself increases by 2 each time, so the next difference is 12.
   30 + 12 = 42.

2. 2. Which part of a flower is the male reproductive part that produces pollen grains?

   • AOvary
   • BSepal
   • CStigma
   • DStamencorrect
   Solution: The stamen is the male part of a flower. Each stamen has a thin filament topped by an anther, and the anther produces tiny pollen grains.

3. 3. Consider the following statements.(i) Plants absorb water only through their leaves, never through their roots.(ii) The stamen is the male part of a flower and produces pollen grains.(iii) Sound can travel through empty space (a vacuum) just as easily as it travels through air.Which of the statements is/are correct?

   • A(i) and (ii) only
   • B(ii) onlycorrect
   • C(i) and (iii) only
   • DAll three
   Solution: Statement (i) is false, since plants absorb water mainly through the root hairs in their roots, not through their leaves. Statement (ii) is true, since the stamen, made up of a filament and an anther, is the flower's male part and produces pollen. Statement (iii) is false, because sound needs a medium such as air, water or a solid to travel through, and cannot pass through an empty vacuum at all. Hence only (ii) is correct.