Science Full Practice Exam – Set 3 (Class 9)

What this worksheet covers

This is a 50-question practice worksheet on full practice exam — set 3 for Class 9, 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 four sections — Section 1 — Logical Reasoning, Section 2 — Science, Section 2 — Science (contd.) 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 9 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
• Section 2 — Science (contd.) 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. 4Take g = 10 m/s² unless stated otherwise. There is no negative marking.
5. 5Study every diagram and table carefully before answering.

Sample questions from this worksheet

A preview of what's inside Science Full Practice Exam – Set 3 (Class 9) — the PDF has the full set, and every question comes with a worked solution like these.

1. 1. What comes next in the series? 100, 81, 64, 49, ____

   • A25
   • B30
   • C36correct
   • D42
   Solution: The terms are the squares 10², 9², 8², 7², counting downwards. The next is 6² = 36.

2. 2. A gas can be converted into a liquid by _______.

   • AHeating it and reducing the pressure
   • BShaking it vigorously
   • CAdding a catalyst
   • DCooling it and applying pressurecorrect
   Solution: Cooling slows the particles and pressure pushes them closer together, so the forces of attraction can hold them in the liquid state. This is how LPG is stored as a liquid inside a cylinder.

3. 3. A speed of 72 km/h expressed in metres per second is _______.

   • A10 m/s
   • B36 m/s
   • C25 m/s
   • D20 m/scorrect
   Solution: Multiply by {5/18} to convert: 72 × {5/18} = 20 m/s.