Science Full Practice Exam – Set 2 (Class 5)

What this worksheet covers

This is a 50-question practice worksheet on full practice exam — set 2 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 2 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 2 (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? 3, 7, 15, 31, 63, ____

   • A111
   • B119
   • C127correct
   • D135
   Solution: Each term is double the previous term plus 1: 3×2+1=7, 7×2+1=15, 15×2+1=31, 31×2+1=63.
   The next term is 63×2+1 = 127.

2. 2. Which part of a plant absorbs water and dissolved minerals from the soil?

   • ARoot haircorrect
   • BLeaf blade
   • CPetal
   • DAnther
   Solution: Root hairs are thin, thread-like extensions near the tip of a root. They greatly increase the surface in contact with soil, allowing the root to absorb water and dissolved minerals efficiently.

3. 3. Consider the following statements.(i) Filtration can separate common salt dissolved in water from the water.(ii) A magnet can be used to separate iron nails from a mixture of iron nails and rice grains.(iii) Sound cannot travel through a vacuum, but light can.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, since filtration only holds back solids that do not dissolve, and dissolved salt passes through the filter paper along with the water; evaporation would be needed instead. Statement (ii) is true, because iron is attracted to a magnet while rice grains are not. Statement (iii) is true, since sound needs a medium to travel and cannot pass through empty space, whereas light can travel through a vacuum, which is how sunlight reaches the earth. Hence (ii) and (iii) are correct.